468 results on '"Hunter, David J"'
Search Results
2. Where Medical Statistics Meets Artificial Intelligence.
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Hunter, David J. and Holmes, Christopher
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ARTIFICIAL intelligence , *MEDICAL statistics , *MACHINE learning , *MOSQUITO nets , *LANGUAGE models , *SCIENTIFIC communication , *CLINICAL prediction rules - Abstract
The article discusses the intersection of medical statistics and artificial intelligence (AI), highlighting the challenges faced in applying AI to biomedical data analysis and the need for a balance between learning from data and ensuring accuracy, robustness, and reproducibility of data-driven conclusions in medical research. It emphasizes the unique features of AI that make it powerful yet statistically vulnerable and explores challenges related to population inference.
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- 2023
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3. At Breaking Point or Already Broken? The National Health Service in the United Kingdom.
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Hunter, David J.
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PHYSICIANS , *HEADLINES - Abstract
The author discusses the status of the National Health Service (NHS) in the U.K. as of July 13, 2023. Topics covered include various issues of patient crowding, ambulances' inability in handling over patients , and emergency department waiting times, the primary cause of long-term underinvestment in health services, and NHS's dependence on nursing homes and aged care facilities. Also noted are the miseries and frustrations all of these bring to patients and exhausted health professionals.
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- 2023
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4. Efficacy, Safety, and Accuracy of Intra-articular Therapies for Hand Osteoarthritis: Current Evidence.
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Oo, Win Min and Hunter, David J.
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DRUG efficacy , *PLATELET-rich plasma , *ADRENOCORTICAL hormones , *HAND osteoarthritis , *INFLIXIMAB , *TREATMENT effectiveness , *HYALURONIC acid , *PROLOTHERAPY , *STEM cells , *PATIENT safety , *PAIN management , *EVALUATION - Abstract
The lifetime risk of symptomatic hand osteoarthritis (OA) is 39.8%, with one in two women and one in four men developing the disease by age 85 years and no disease-modifying drug (DMOAD) available so far. Intra-articular (IA) therapy is one of the options commonly used for symptomatic alleviation of OA disease as it can circumvent systemic exposure and potential side effects of oral medications. The current narrative review focuses on the efficacy and safety profiles of the currently available IA agents in hand OA (thumb-base OA or interphalangeal OA) such as corticosteroids and hyaluronic acid (HA), as well as the efficacy and safety of IA investigational injectates in phase 2/3 clinical trials such as prolotherapy, platelet-rich plasma, stem cells, infliximab, interferon-? and botulinum toxin, based on the published randomized controlled trials on PubMed database. The limited published literature revealed the short-term symptomatic benefits of corticosteroids in interphalangeal OA while long-term data are lacking. Most of the short-term studies showed no significant difference between corticosteroids and hyaluronic acid in thumb-base OA, usually with a faster onset of pain relief in the corticosteroid group and a slower but greater (statistically insignificant) pain improvement in the HA group. The majority of studies in investigational agents were limited by small sample size, short-term follow-up, and presence of serious side effects. In addition, we reported higher accuracy rates of drug administrations under imaging guidance than landmark guidance (blind method), and then briefly describe challenges for the long-term efficacy and prospects of IA therapeutics. [ABSTRACT FROM AUTHOR]
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- 2023
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5. Context‐dependent concordance between physiological divergence and phenotypic selection in sister taxa with contrasting phenology and mating systems.
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Mazer, Susan J., Hunter, David J., Hove, Alisa A., and Dudley, Leah S.
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BOTANICAL specimens , *BIOLOGICAL specimens , *WATER efficiency , *PHENOLOGY , *PHENOTYPES , *NATURAL selection , *CLIMATE change , *FLOWERING of plants , *PLANT phenology - Abstract
Premise: The study of phenotypic divergence of, and selection on, functional traits in closely related taxa provides the opportunity to detect the role of natural selection in driving diversification. If the strength or direction of selection in field populations differs between taxa in a pattern that is consistent with the phenotypic difference between them, then natural selection reinforces the divergence. Few studies have sought evidence for such concordance for physiological traits. Methods: Herbarium specimen records were used to detect phenological differences between sister taxa independent of the effects on flowering time of long‐term variation in the climate across collection sites. In the field, physiological divergence in photosynthetic rate, transpiration rate, and instantaneous water‐use efficiency were recorded during vegetative growth and flowering in 13 field populations of two taxon pairs of Clarkia, each comprising a self‐pollinating and a outcrossing taxon. Results: Historically, each selfing taxon flowered earlier than its outcrossing sister taxon, independent of the effects of local long‐term climatic conditions. Sister taxa differed in all focal traits, but the degree and (in one case) the direction of divergence depended on life stage. In general, self‐pollinating taxa had higher gas exchange rates, consistent with their earlier maturation. In 6 of 18 comparisons, patterns of selection were concordant with the phenotypic divergence (or lack thereof) between sister taxa. Conclusions: Patterns of selection on physiological traits measured in heterogeneous conditions do not reliably reflect divergence between sister taxa, underscoring the need for replicated studies of the direction of selection within and among taxa. [ABSTRACT FROM AUTHOR]
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- 2022
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6. Addressing Vaccine Inequity - Covid-19 Vaccines as a Global Public Good.
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Hunter, David J., Karim, Salim S. Abdool, Baden, Lindsey R., Farrar, Jeremy J., Hamel, Mary Beth, Longo, Dan L., Morrissey, Stephen, and Rubin, Eric J.
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An editorial is presented on the need for a booster to restore high antibody levels both to reduce infection with new variants and to minimize hospitalization and death. Topics include restore high antibody levels both to reduce infection with new variants and to minimize hospitalization and death; and emergence of the omicron variant has increased the urgency of these booster doses.
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- 2022
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7. Nerve Growth Factor (NGF) Inhibitors and Related Agents for Chronic Musculoskeletal Pain: A Comprehensive Review.
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Oo, Win Min and Hunter, David J
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NERVE growth factor , *MUSCULOSKELETAL pain , *OSTEOARTHRITIS , *CHRONIC pain , *NEUROTROPHINS , *LUMBAR pain , *CELLULAR signal transduction - Abstract
Musculoskeletal pain such as osteoarthritis (OA) and low back pain (LBP) are very common and contribute to enormous burden and societal costs, despite dramatic therapeutic advances over recent decades. Novel approaches and targeted therapies are required to satisfy the urgent unmet medical need of musculoskeletal pain relief in both conditions. Nerve growth factor (NGF) inhibitors have utilized novel mechanisms different from conventional drugs, which have a variety of gastrointestinal, cardiac, or renal adverse effects. Several phase 2/3 studies have been accomplished for these drugs, such as tanezumab, fasinumab, and tyrosine receptor kinase A (TrkA) inhibitors. We searched the literature using the PubMed database and clinical trials using ClinicalTrials.gov to identify original papers, meta-analyses as well as ongoing clinical trials assessing the efficacy and safety profile of these drugs. In this narrative review, we briefly overview the disease burden of musculoskeletal pain, the role of NGF signaling and its receptors in the genesis of pain, and the mechanisms of action of inhibitors of NGF signaling and downstream pathways, and then discuss the efficacy and safety of each investigational drug in OA and LBP. Finally, we briefly review two serious adverse effects of NGF inhibitors, namely rapidly progressive OA and sympathetic system effects, and conclude with possible barriers and potential research directions to overcome these. [ABSTRACT FROM AUTHOR]
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- 2021
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8. Where Medical Statistics Meets Artificial Intelligence.
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Hunter, David J. and Holmes, Christopher
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ARTIFICIAL intelligence , *MEDICAL statistics , *STATISTICAL learning , *MACHINE learning - Abstract
The article focuses on important challenges at the intersection of statistics and AI for medical studies, addressing issues in the application of AI methods to medical decision-making. It authors agree with the acknowledgment that many pitfalls described in AI application are present in conventional statistical approaches, emphasizing the importance of human mediation, assessing clinical validity and utility.
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- 2023
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9. Multi-centre randomised controlled trial comparing arthroscopic hip surgery to physiotherapist-led care for femoroacetabular impingement (FAI) syndrome on hip cartilage metabolism: the Australian FASHIoN trial.
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Hunter, David J., Eyles, Jillian, Murphy, Nicholas J., Spiers, Libby, Burns, Alexander, Davidson, Emily, Dickenson, Edward, Fary, Camdon, Foster, Nadine E., Fripp, Jurgen, Griffin, Damian R., Hall, Michelle, Kim, Young Jo, Linklater, James M., Molnar, Robert, Neubert, Ales, O'Connell, Rachel L., O'Donnell, John, O'Sullivan, Michael, and Randhawa, Sunny
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ARTHROSCOPY , *HIP surgery , *RANDOMIZED controlled trials , *MAGNETIC resonance imaging , *FEMORACETABULAR impingement , *CARTILAGE - Abstract
Background: Arthroscopic surgery for femoroacetabular impingement syndrome (FAI) is known to lead to self-reported symptom improvement. In the context of surgical interventions with known contextual effects and no true sham comparator trials, it is important to ascertain outcomes that are less susceptible to placebo effects. The primary aim of this trial was to determine if study participants with FAI who have hip arthroscopy demonstrate greater improvements in delayed gadolinium-enhanced magnetic resonance imaging (MRI) of cartilage (dGEMRIC) index between baseline and 12 months, compared to participants who undergo physiotherapist-led management.Methods: Multi-centre, pragmatic, two-arm superiority randomised controlled trial comparing physiotherapist-led management to hip arthroscopy for FAI. FAI participants were recruited from participating orthopaedic surgeons clinics, and randomly allocated to receive either physiotherapist-led conservative care or surgery. The surgical intervention was arthroscopic FAI surgery. The physiotherapist-led conservative management was an individualised physiotherapy program, named Personalised Hip Therapy (PHT). The primary outcome measure was change in dGEMRIC score between baseline and 12 months. Secondary outcomes included a range of patient-reported outcomes and structural measures relevant to FAI pathoanatomy and hip osteoarthritis development. Interventions were compared by intention-to-treat analysis.Results: Ninety-nine participants were recruited, of mean age 33 years and 58% male. Primary outcome data were available for 53 participants (27 in surgical group, 26 in PHT). The adjusted group difference in change at 12 months in dGEMRIC was -59 ms (95%CI - 137.9 to - 19.6) (p = 0.14) favouring PHT. Hip-related quality of life (iHOT-33) showed improvements in both groups with the adjusted between-group difference at 12 months showing a statistically and clinically important improvement in arthroscopy of 14 units (95% CI 5.6 to 23.9) (p = 0.003).Conclusion: The primary outcome of dGEMRIC showed no statistically significant difference between PHT and arthroscopic hip surgery at 12 months of follow-up. Patients treated with surgery reported greater benefits in symptoms at 12 months compared to PHT, but these benefits are not explained by better hip cartilage metabolism.Trial Registration Details: Australia New Zealand Clinical Trials Registry reference: ACTRN12615001177549 . Trial registered 2/11/2015. [ABSTRACT FROM AUTHOR]- Published
- 2021
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10. The Complementarity of Public Health and Medicine - Achieving "the Highest Attainable Standard of Health".
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Hunter, David J.
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CHOLERA , *TYPHOID fever , *PUBLIC health , *MEDICAL personnel , *LEGIONNAIRES' disease , *WATER fluoridation , *PHYSICIANS - Abstract
The article presents a case study of a 70-year-old retired landscaper, presents to the emergency department reporting 3 hours of left-sided chest pain. The article discusses that the risk of heart attack was twice as high among middle-aged men as it is today, but public health campaigns may have inspired; and Changes in dietary advice and regulations such as limiting trans fats in the food supply may also have prevented hyperlipidemia and reduced.
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- 2021
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11. Osteoarthritis research is failing to reach consumers.
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Duong, Vicky and Hunter, David J.
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INTRA-articular injections , *PLATELET-rich plasma , *OSTEOARTHRITIS , *CONSUMERS , *INFORMATION-seeking behavior - Abstract
Given that intra-articular injections for the knee of treatments such as hyaluronic acid, stem cells and platelet-rich plasma are advised against or only weakly recommended by current clinical-practice guidelines, why do people continue to seek information about these treatments? [ABSTRACT FROM AUTHOR]
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- 2023
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12. Segregation Surfaces.
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Hunter, David J. and Warioba, Chisondi
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SURFACE segregation , *BAYES' theorem , *ANIMAL population density , *SOCIAL scientists , *STATISTICAL smoothing ,UNITED States census - Abstract
Social scientists have developed dozens of different ways to quantify urban segregation with numerical statistics. Behind the scenes, some of these measurements are defined using multivariable functions that model the distribution of various groups in a geographical region. Using Bayes' theorem and kernel density estimation, we describe how to summarize population data in terms of smooth, two-dimensional surfaces. These surfaces give us ways of identifying neighborhood boundaries and visualizing segregation patterns. We also propose two new segregation measures using some familiar tools from third-semester calculus. Applications to United States census data are included. [ABSTRACT FROM AUTHOR]
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- 2021
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13. A healthier way to meet people: the experiences of LGBT people exercising with a peer group.
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Hunter, David J and Boyle, Kevin
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EXERCISE , *HEALTH status indicators , *INTERVIEWING , *RESEARCH methodology , *MENTAL health , *RESEARCH , *QUALITATIVE research , *AFFINITY groups , *THEMATIC analysis , *PHYSICAL activity , *PSYCHOLOGY of LGBTQ+ people , *HEALTH & social status - Abstract
Background: Lesbian, gay, bisexual and trans (LGBT) individuals have been shown to have poorer health when compared to those who identified as heterosexual. Additionally, they encounter barriers that deter participation in sports. Aim: To understand the experiences of LGBT individuals who participate in physical activity with peers. Method: An exploratory-descriptive qualitative (EDQ) study with data collected via face-to-face interviews from 12 participants. Data were thematically analysed to identify findings. Findings: exercising with peers represents a healthier way to meet people. Participants experienced improved physical, mental and social health. Conclusion: Engaging with a peer group for physical activity can have a transformational effect on members of the LGBT community, impacting on all aspects of their wellbeing. Nurses, and other health professionals, should be aware of the multifaceted benefits that exercising with a peer group can have, using their regular interactions with this patient group to recommend peer-supported exercise. [ABSTRACT FROM AUTHOR]
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- 2020
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14. Core and adjunctive interventions for osteoarthritis: efficacy and models for implementation.
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Bowden, Jocelyn L., Hunter, David J., Deveza, Leticia A., Duong, Vicky, Dziedzic, Krysia S., Allen, Kelli D., Chan, Ping-Keung, and Eyles, Jillian P.
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THERMOTHERAPY , *OSTEOARTHRITIS , *TRANSCUTANEOUS electrical nerve stimulation , *COGNITIVE therapy , *PROFESSIONAL practice , *EVIDENCE-based medicine , *WEIGHT loss , *EXERCISE , *RESEARCH funding , *COMBINED modality therapy , *PATIENT education , *DISEASE management , *HEALTH promotion - Abstract
Osteoarthritis (OA) is a complex musculoskeletal disease and a leading cause of pain and disability worldwide. Hip and knee OA alone are major contributors to global disability, having notable effects on individual well-being, increasing the reliance of individuals on health-care services and contributing to a rise in the socioeconomic burden. Consistent, coordinated and tailored approaches are important for providing appropriate care to all people with OA, but despite the scale of the challenge many individuals are still not offered the safe, best-evidence treatments recommended for OA care. This Review discusses the core priority treatments for OA, including exercise and physical activity, weight-loss, education and support for self-management. Additional physical or psychological evidence-based adjunctive therapies and combined therapies that can be used to tailor individual programmes are also discussed. These options include cognitive behavioural therapy, heat therapy, walking aids and splints, manual therapies and transcutaneous electrical nerve stimulation. International examples of OA treatment options, models of care and resources available are also given. Many challenges still need to be addressed to advance the uptake of these conditions, including further discussion around the risks and costs involved with all treatments. [ABSTRACT FROM AUTHOR]
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- 2020
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15. Partnership or insanity: why do health partnerships do the same thing over and over again and expect a different result?
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Perkins, Neil, Hunter, David J, Visram, Shelina, Finn, Rachael, Gosling, Jennifer, Adams, Lee, and Forrest, Amanda
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HEALTH care reform , *DECISION making , *EXECUTIVES , *GOAL (Psychology) , *HEALTH , *HEALTH promotion , *HEALTH services administration , *INTEGRATED health care delivery , *INTERPROFESSIONAL relations , *INTERVIEWING , *LOCAL government , *RESEARCH methodology , *EVALUATION of medical care , *NATIONAL health services , *POWER (Social sciences) , *RESEARCH funding , *RESPONSIBILITY , *SOCIAL case work , *QUALITATIVE research , *WELL-being , *HEALTH & social status - Abstract
Objectives: The paper reports on an empirical study of Health and Wellbeing Boards (HWBs) in England. Established by the Health and Social Care Act 2012, HWBs act as place-based hubs for leaders in health, social care, local government and other sectors to come together to address health improvement and the wider determinants of health. Methods: We conducted a three-year study of HWBs (2015–2017) in five localities across England. This involved collecting qualitative data from semi-structured interviews with key actors in the HWBs at strategic and operational levels, and focus group sessions with voluntary-sector participants at each HWB. Results: HWBs have largely followed the path of previous partnerships in terms of a lack of clear aims and objectives, lack of ownership and accountability by partners, and an absence of any significant impact on health outcomes. Conclusions: Many of the features of unsuccessful partnership working were largely displayed by HWBs. Boards require more executive power and ownership from the bottom up if they are to have any real impact. [ABSTRACT FROM AUTHOR]
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- 2020
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16. Pharmacokinetic assessment of constituents of Boswellia serrata, pine bark extracts, curcumin in combination including methylsulfonylmethane in healthy volunteers.
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Liu, Xiaoqian, Hunter, David J., Eyles, Jillian, McLachlan, Andrew J., Adiwidjaja, Jeffry, Eagles, Shane K., and Wang, XiaoSuo
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LIQUID chromatography-mass spectrometry , *BOSWELLIA , *CURCUMIN , *BARK , *DIETARY supplements , *PINACEAE - Abstract
Objectives: Dietary supplements are increasingly used by people with osteoarthritis. Boswellia serrata extract, curcumin, pine bark extract and methylsulfonylmethane have been identified as having the largest effects for symptomatic relief in a systematic review. It is important to understand whether any pharmacokinetic interactions are among the major constituents of these supplements so as to provide information when considering the combination use of these supplements. The aim of this study was to investigate the pharmacokinetics of the constituents alone and in combination. Methods: This study was a randomized, open‐label, single‐dose, four‐treatment, four‐period, crossover study with 1‐week washout. The pharmacokinetics of the constituents of these supplements when dosed in combination with methylsulfonylmethane were compared to being administered alone. Plasma samples were obtained over 24 h from 16 healthy participants. Eight major constituents were analysed using a validated ultra‐high‐performance liquid chromatography–tandem mass spectrometry assay. Key findings: The pharmacokinetics of each constituent was characterized, and there were no significant differences in the pharmacokinetic profiles of the constituents when administered as a combination, relative to the constituents when administered alone (P > 0.05). Conclusions: These data suggest that interactions between the major constituents of this supplement combination are unlikely and therefore could be investigated to manage patients with osteoarthritis without significant concerns for possible pharmacokinetic interactions. [ABSTRACT FROM AUTHOR]
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- 2020
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17. Osteoarthritis.
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Hunter, David J and Bierma-Zeinstra, Sita
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OSTEOARTHRITIS , *OSTEOARTHRITIS diagnosis , *OLDER people , *PREVENTIVE medicine , *WEIGHT loss , *THERAPEUTICS , *ANTI-inflammatory agents , *HIP joint diseases diagnosis , *OSTEOARTHRITIS treatment , *ANALGESICS , *ARTHROSCOPY , *ARTIFICIAL joints , *DEMOGRAPHY , *ECONOMIC aspects of diseases , *EXERCISE therapy , *FORECASTING , *HIP joint diseases , *KNEE diseases , *MEDICAL referrals , *OSTEOTOMY , *PAIN , *WORLD health , *DISEASE incidence , *DISEASE prevalence - Abstract
Osteoarthritis is a leading cause of disability and source of societal cost in older adults. With an ageing and increasingly obese population, this syndrome is becoming even more prevalent than in previous decades. In recent years, we have gained important insights into the cause and pathogenesis of pain in osteoarthritis. The diagnosis of osteoarthritis is clinically based despite the widespread overuse of imaging methods. Management should be tailored to the presenting individual and focus on core treatments, including self-management and education, exercise, and weight loss as relevant. Surgery should be reserved for those that have not responded appropriately to less invasive methods. Prevention and disease modification are areas being targeted by various research endeavours, which have indicated great potential thus far. This narrative Seminar provides an update on the pathogenesis, diagnosis, management, and future research on osteoarthritis for a clinical audience. [ABSTRACT FROM AUTHOR]
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- 2019
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18. Acupuncture and Knee Osteoarthritis: Does Dose Matter?
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Hunter, David J. and Harris, Richard E.
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OSTEOARTHRITIS treatment , *KNEE diseases , *ACUPUNCTURE , *SERIAL publications , *TREATMENT duration - Abstract
An editorial is presented to the article osteoarthritis (OA) has an extraordinarily prevalent and disabling disease. Topics include society has being impacted FOR underemployment and the opioid epidemic, and health care systems have as a consequence of the trajectory of increasing joint replacement requirements; and acupuncture has a component of traditional East Asian medicine and has been used as a healing practice.
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- 2021
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19. Does neighbourhood deprivation influence low back pain and arthritis: An empirical study using multilevel twin design.
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Feng, Yingyu, Bowden, Jocelyn L., Hunter, David J., Ferreira, Paulo, and Duncan, Glen E.
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LUMBAR pain , *MULTILEVEL models , *ARTHRITIS , *INCOME , *BACHELOR'S degree , *BODY mass index , *NEIGHBORHOODS - Abstract
Objective: Neighbourhood deprivation has been found to be associated with many health conditions, but its association with low back pain (LBP) and arthritis is unclear. This study aimed to examine the association between neighbourhood deprivation with LBP and arthritis, and its potential interaction with individual socioeconomic status (SES) on these outcomes. Methods: Monozygotic (MZ) twins from the Washington State Twin Registry were used to control for genetic and common environmental factors that could otherwise confound the purported relationship. Multilevel models were employed to examine the association between neighbourhood deprivation as well as individual-level SES with LBP/arthritis, adjusting for age, sex, body mass index (BMI) and residence rurality. Results: There were 6,380 individuals in the LBP sample and 2,030 individuals in the arthritis sample. Neighbourhood deprivation was not associated with LBP (P = 0.26) or arthritis (P = 0.61), and neither was its interaction with individual-level SES. People without a bachelor's degree were more likely to report LBP (OR 1.44, 95% CI 1.26–1.65) or both LBP and arthritis (OR 1.67, 95% CI 1.14–2.45) than those with a bachelor's degree, but not for arthritis alone (P = 0.17). Household income was not significantly associated with LBP (P = 0.16) or arthritis (p = 0.23) independent of age, sex, and BMI. Conclusion: Our study did not find significant associations between neighbourhood deprivation and the presence of LBP or arthritis. More research using multilevel modelling to investigate neighbourhood effects on LBP and arthritis is recommended. [ABSTRACT FROM AUTHOR]
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- 2024
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20. Effects of a Single Intra-Articular Injection of a Microsphere Formulation of Triamcinolone Acetonide on Knee Osteoarthritis Pain: A Double-Blinded, Randomized, Placebo-Controlled, Multinational Study.
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Conaghan, Philip G., Hunter, David J., Cohen, Stanley B., Kraus, Virginia B., Berenbaum, Francis, Lieberman, Jay R., Jones, Deryk G., Spitzer, Andrew I., Jevsevar, David S., Katz, Nathaniel P., Burgess, Diane J., Lufkin, Joelle, Johnson, James R., Bodick, Neil, and FX006-2014-008 Participating Investigators
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ADRENOCORTICAL hormones , *OSTEOARTHRITIS , *TRIAMCINOLONE acetonide , *MICROSPHERES , *PLACEBOS - Abstract
Background: Intra-articular corticosteroids relieve osteoarthritis pain, but rapid systemic absorption limits efficacy. FX006, a novel, microsphere-based, extended-release triamcinolone acetonide (TA) formulation, prolongs TA joint residence and reduces systemic exposure compared with standard TA crystalline suspension (TAcs). We assessed symptomatic benefits and safety of FX006 compared with saline-solution placebo and TAcs.Methods: In this Phase-3, multicenter, double-blinded, 24-week study, adults ≥40 years of age with knee osteoarthritis (Kellgren-Lawrence grade 2 or 3) and average-daily-pain (ADP)-intensity scores of ≥5 and ≤9 (0 to 10 numeric rating scale) were centrally randomized (1:1:1) to a single intra-articular injection of FX006 (32 mg), saline-solution placebo, or TAcs (40 mg). The primary end point was change from baseline to week 12 in weekly mean ADP-intensity scores for FX006 compared with saline-solution placebo. Secondary end points were area-under-effect (AUE) curves of the change in weekly mean ADP-intensity scores from baseline to week 12 for FX006 compared with saline-solution placebo, AUE curves of the change in weekly mean ADP-intensity scores from baseline to week 12 for FX006 compared with TAcs, change in weekly mean ADP-intensity scores from baseline to week 12 for FX006 compared with TAcs, and AUE curves of the change in weekly mean ADP-intensity scores from baseline to week 24 for FX006 compared with saline-solution placebo. Exploratory end points included week-12 changes in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Knee Injury and Osteoarthritis Outcome Score Quality of Life (KOOS-QOL) subscale scores for FX006 compared with saline-solution placebo and TAcs. Adverse events were elicited at each inpatient visit.Results: The primary end point was met. Among 484 treated patients (n = 161 for FX006, n = 162 for saline-solution placebo, and n = 161 for TAcs), FX006 provided significant week-12 improvement in ADP intensity compared with that observed for saline-solution placebo (least-squares mean change from baseline: -3.12 versus -2.14; p < 0.0001) indicating ∼50% improvement. FX006 afforded improvements over saline-solution placebo for all secondary and exploratory end points (p < 0.05). Improvements in osteoarthritis pain were not significant for FX006 compared with TAcs using the ADP-based secondary measures. Exploratory analyses of WOMAC-A, B, and C and KOOS-QOL subscales favored FX006 (p ≤ 0.05). Adverse events were generally mild, occurring at similar frequencies across treatments.Conclusions: FX006 provided significant, clinically meaningful pain reduction compared with saline-solution placebo at week 12 (primary end point).Level Of Evidence: Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence. [ABSTRACT FROM AUTHOR]- Published
- 2018
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21. Ward staff perceptions of the role of the advanced nurse practitioner in a ‘hospital at day’ setting.
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Halliday, Stuart, Hunter, David J, and McMillan, Laura
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NURSE practitioners , *HOSPITAL wards , *SENSORY perception , *OCCUPATIONAL roles , *HEALTH care teams , *JOB skills , *NURSING , *ORGANIZATIONAL structure , *PSYCHOLOGY , *CLINICAL medicine , *INTERVIEWING , *PHENOMENOLOGY , *RESEARCH methodology , *EVALUATION of medical care , *NURSES , *NURSES' attitudes , *NURSING specialties , *QUALITATIVE research , *JUDGMENT sampling - Abstract
Aim: to examine ward staff perceptions on the role of the ‘hospital at day’ advanced nurse practitioner (ANP). This term is used locally to refer to a model first introduced into ‘hospital at night’ teams, in response to changes in working patterns of junior doctors, where an advanced nurse practitioner is based on the ward—the model was subsequently rolled out to daytime teams. Methods: a qualitative descriptive phenomenological approach was adopted to carry out this study with a purposive sample of ten participants. Participants were interviewed individually using semi-structured interviews to gain insights into their perceptions on the role of the ANP, following Colaizzi’s analytical model of data analysis. Findings: four major themes were identified. The first overarching theme was effectiveness of the ANP role. There was evidence that the role was not only clinically effective in the ward but also in relation to organisational priorities such as impact on patient flow. Secondly it was acknowledged that having an ANP based on the ward and as a ‘constant’ in the ward area, when medical teams rotate, provides team stability and improves the functioning of the ward area. Despite the positivity recognised, the third theme identified that having a ward-based ANP may affect skill acquisition and development and may lead to the ‘de-skilling’ of staff. Lastly it was acknowledged that there remains an overall confusion about the role of the ANP. Conclusion: the themes identified reflect what is already known about the wider perceived role of the ANP. Moreover, this study adds to the limited literature available specifically on the benefits of the ANP within ‘hospital at day’ roles. [ABSTRACT FROM AUTHOR]
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- 2018
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22. The Precision of Evidence Needed to Practice "Precision Medicine".
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Hunter, David J. and Longo, Dan L.
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INDIVIDUALIZED medicine , *EPIDERMAL growth factor receptors - Published
- 2019
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23. Has the Genome Granted Our Wish Yet?
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Hunter, David J. and Drazen, Jeffrey M.
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GENOMES , *AGE distribution , *DISEASE susceptibility , *GENETIC techniques , *HUMAN genome , *RISK assessment , *GENETIC testing , *GENOMICS - Published
- 2019
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24. In degenerative meniscal tears, PT was noninferior to arthroscopic partial meniscectomy for knee function at 5 y.
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Hunter, David J.
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MENISCUS injuries , *MENISCECTOMY , *KNEE , *BIBLIOGRAPHICAL citations , *PHYSICAL therapy , *MENISCUS surgery , *EVALUATION research , *ARTHROSCOPY , *RANDOMIZED controlled trials , *KNEE joint , *RESEARCH , *RESEARCH methodology , *COMPARATIVE studies , *KNEE injuries - Abstract
Source Citation: Noorduyn JCA, van de Graaf VA, Willigenburg NW, et al. Effect of physical therapy vs arthroscopic partial meniscectomy in people with degenerative meniscal tears: five-year follow-up of the ESCAPE randomized clinical trial. JAMA Netw Open. 2022;5:e2220394. 35802374. [ABSTRACT FROM AUTHOR]- Published
- 2022
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25. Editorial: Unraveling Osteoarthritis Pathogenesis: New Insights Into Preradiographic Disease and Patient Phenotypes.
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Deveza, Leticia A. and Hunter, David J.
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MAGNETIC resonance imaging , *OSTEOARTHRITIS , *RESEARCH funding , *PHENOTYPES , *GENOMICS , *SEVERITY of illness index , *EARLY diagnosis - Abstract
The article offers information on osteoarthritis (OA) pathogenesis. Topics discussed include the relation of obesity and aging to risk of symptomatic knee OA, total knee joint replacement and the similarity of a rheumatoid arthritis to congestive heart failure. Information on latent class analysis (LCA) approach is offered.
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- 2015
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26. Managing osteoarthritis.
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Yu, Shirley P. and Hunter, David J.
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OSTEOARTHRITIS treatment , *OSTEOARTHRITIS , *JOINT surgery , *KNEE pain , *DISEASE progression , *PLACEBOS , *PHYSICAL therapy , *THERAPEUTICS - Abstract
Management of osteoarthritis should be based on a combination of non-drug and drug treatments targeted towards prevention, modifying risk and disease progression. Obesity is the most important modifiable risk factor, so losing weight in addition to land- and water-based exercise and strength training is important. While paracetamol can be tried, guidelines recommend non-steroidal anti-inflammatory drugs as first-line treatment for osteoarthritis. If there are concerns about the adverse effects of oral treatment, particularly in older patients or those with comorbidities, topical non-steroidal anti-inflammatory drugs can be used. Glucosamine does not appear to be any better than placebo for pain. Its effect on the structural progression of disease when taken alone or in combination with chondroitin is uncertain. Fish oil has not been found to reduce the structural progression of knee arthritis. Surgical interventions should be avoided in the first instance, with arthroscopic procedures not showing benefit over sham procedures or optimised physical and medical therapy. Joint replacement surgery should be considered for severe osteoarthritis. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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27. Viscosupplementation for Osteoarthritis of the Knee.
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Hunter, David J.
- Subjects
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OSTEOARTHRITIS treatment , *THERAPEUTIC use of hyaluronic acid , *KNEE pain - Abstract
The article describes the case of a 67 year old woman with right-knee osteoarthritis referred for treatment of her knee pain. The patient inquired whether hyaluronate injection therapy may be appropriate for her although the specialist recommends weight loss and exercise and counsel her on the appropriate use of viscosupplements. It notes that present evidence base will not advocate the use of intraarticular hyaluronate for managing knee osteoarthritis.
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- 2015
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28. A Renewed Vision for Higher Education in Public Health.
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Frenk, Julio, Hunter, David J., and Lapp, Ian
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STRATEGIC planning , *TEACHING methods , *SOCIAL change , *LEADERSHIP , *PUBLIC health , *WORLD health , *HUMAN life cycle , *THEORY-practice relationship , *UNIVERSITIES & colleges , *GRADUATE education , *EXPERIENTIAL learning , *OUTCOME-based education , *CURRICULUM planning , *INFORMATION technology - Abstract
We are transforming the educational strategy at the Harvard T. H. Chan School of Public Health guided by 5 principles: (1) development of T-shaped competencies (breadth across fields, depth in primary fields), (2) flexible and modular design accommodating different needs through the life-cycle, (3) greater experiential learning, (4) 3 levels of education (informative, formative, and transformative learning), and (5)integrated instructional design (online, in person, and in the field). We aim to create an arc of education resulting in continuous learning. We seek to bridge the research versus education dichotomy and create research–teaching congruence, adapting the values of peer review and quality assessment that we routinely accept for grant and article review to education. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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29. Physical activity and associations with computed tomography-detected lumbar zygapophyseal joint osteoarthritis.
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Suri, Pradeep, Hunter, David J, Boyko, Edward J, Rainville, James, Guermazi, Ali, and Katz, Jeffrey N
- Abstract
Background Context: There are no previous epidemiologic studies examining associations between physical activity and imaging-detected lumbar zygapophyseal joint osteoarthritis (ZJO) in a community-based sample.Purpose: To determine whether physical activity is associated with prevalent lumbar ZJO on computed tomography (CT).Study Design/setting: A community-based cross-sectional study.Patient Sample: Four hundred twenty-four older adults from the Framingham Heart Study.Outcome Measures: Participants received standardized CT assessments of lumbar ZJO at the L2-S1 levels. Severe lumbar ZJO was defined according to the presence and/or degree of joint space narrowing, osteophytosis, articular process hypertrophy, articular erosions, subchondral cysts, and intra-articular vacuum phenomenon. This definition of lumbar ZJO was based entirely on CT imaging findings and did not include any clinical criteria such as low back pain.Methods: Physical activity was measured using the Physical Activity Index, which estimate hours per day typically spent in these activity categories: sleeping, sitting, slight activity, moderate activity, and heavy activity. Participants reported on usual frequency of walking, running, swimming, and weightlifting. We used multivariable logistic regression to examine associations between self-reported activity and severe lumbar ZJO, while adjusting for key covariates including age, sex, height, and weight.Results: In multivariable analyses, ordinal categories of heavy physical activity duration per day were significantly associated with severe lumbar ZJO (p for trend=.04), with the greatest risk observed for the category 3 or more hours per day, odds ratio 2.13 (95% confidence interval [CI] 0.97-4.67). When heavy activity was modeled as a continuous independent variable, each hour was independently associated with 1.19 times the odds of severe lumbar ZJO (95% CI 1.03-1.38, p=.02). Less vigorous types of physical activity and the type of exercise were not associated with severe lumbar ZJO. Older age, lesser height, and greater weight were independently and significantly associated with severe lumbar ZJO. In multivariable models predicting lumbar ZJO, neither model discrimination nor reclassification improved with the addition of physical activity variables, compared with a multivariable model including age, sex, height, and weight.Conclusions: Our findings demonstrate a statistically significant cross-sectional association between heavy physical activity and CT-detected severe lumbar ZJO. However, the additional discriminatory capability of heavy physical activity above and beyond that contributed by other factors was negligible. [ABSTRACT FROM AUTHOR]- Published
- 2015
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30. Investigation of a family affected by early-onset osteoarthritis – proposal of a clinical pathway and bioinformatics pipeline for the investigation of cases of familial OA.
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Deveza, Leticia A., Zankl, Andreas, and Hunter, David J.
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WHOLE genome sequencing , *GENETIC variation , *OSTEOARTHRITIS , *GENETIC counseling , *NUCLEOTIDE sequencing , *BIOINFORMATICS - Abstract
Background: Familial cases of early-onset osteoarthritis (OA) are rare although the exact prevalence is unknown. Early recognition of underlying OA-associated disorders is vital for targeted treatment, when available, and genetic counselling, in case of skeletal dysplasias. Currently, there is no clear guidance on how best to investigate families affected by early-onset OA. Methods: We investigated a family with multiple members affected by early-onset OA (age at onset ≤ 40 years). Clinical and demographic characteristics were collected, followed by laboratory investigations screening for a range of potential OA-associated disorders, and whole genome sequencing in selected individuals. Results: Seventeen members of the family were included (7 affected and 10 non-affected). There was an even split between the two sexes and two participants were under 18 years old. No pattern of abnormality was seen in the laboratory investigation that could explain the OA phenotype in the family. Whole-genome sequencing was perfomed in one participant and analysed for likely pathogenic variants in genes known to be associated with skeletal dysplasias. A heterozygous variant in the COL2A1 gene was identified (p.Arg519Cys). Confirmatory tests were performed in five additional participants (four affected and one unaffected). Conclusion: The methodology used in this study, including the clinical pathway and bioinformatics pipeline, could be applied to other families affected by early-onset OA. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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31. Preventive Medicine for the Planet and Its Peoples.
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Hunter, David J., Frumkin, Howard, and Jha, Ashish
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The article offers information on the Climate and Health conference related to impact of climatic changes over health aspects of human beings that held on February 16, 2017. Topics discussed include assessment of several concerns related to elevation in temperatures such as forest fires; expansion of several communicable diseases such as Lyme disease; and adoption of different approaches related to mitigation along with adaptation for climate changes such as reduction in carbon emission.
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- 2017
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32. The individual and socioeconomic impact of osteoarthritis.
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Hunter, David J., Schofield, Deborah, and Callander, Emily
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OSTEOARTHRITIS , *CONNECTIVE tissue diseases , *MEMBRANE proteins , *JOINT diseases , *INFLAMMATION - Abstract
Osteoarthritis (OA) is a highly prevalent, disabling disease, with a commensurate tremendous individual and socioeconomic burden. This Perspectives article focuses on the burden of OA for the individual, the health-care system and society, to draw attention to the magnitude of the current problem with some reference to projected figures. We have an urgent opportunity to make fundamental changes to the way we care for individuals with OA that will have an effect upon the direct and indirect costs of this disease. By focusing on the burden of this prevalent, disabling, and costly disease, we hope to highlight the opportunity for shifts in health-care policy towards prevention and chronic-disease management. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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33. Delayed Gadolinium-Enhanced Magnetic Resonance Imaging of Medial Tibiofemoral Cartilage and Its Relationship With Meniscal Pathology: A Longitudinal Study Using 3.0T Magnetic Resonance Imaging.
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Crema, Michel D., Hunter, David J., Burstein, Deborah, Roemer, Frank W., Li, Ling, Krishnan, Nitya, Marra, Monica D., Hellio Le‐Graverand, Marie‐Pierre, and Guermazi, Ali
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MAGNETIC resonance imaging , *ACADEMIC medical centers , *ANALYSIS of covariance , *CARTILAGE , *LONGITUDINAL method , *MENISCUS (Anatomy) , *OSTEOARTHRITIS , *RESEARCH funding , *CONTRAST media , *DATA analysis software , *DESCRIPTIVE statistics , *THERAPEUTICS - Abstract
Objective To evaluate the relationship between medial meniscal pathology and cartilage matrix status using delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC) in medial tibiofemoral cartilage in a sample of middle-aged women. Methods A total of 148 women ages ≥40 years were included, and 3.0T MRI of the knee was performed at baseline and at 1 year. T2-weighted, fat-suppressed and 3-dimensional inversion recovery-prepared spoiled gradient-recalled echo sequences were acquired 90 minutes after gadolinium injection. Baseline medial meniscal pathology was scored on a scale of 0-3, where 0 = normal, 1 = intrasubstance meniscal signal change, 2 = single tears, and 3 = complex tears/maceration. The central medial femur, the medial tibial plateau, and the posterior medial femur were subjected to dGEMRIC at baseline and at 1 year. Analysis of covariance was used to examine whether baseline and 1-year dGEMRIC indices in the same regions were related to the severity of meniscal damage at baseline, using normal medial menisci (grade 0) as the reference. Results Medial compartments with grade 3 lesions showed significantly lower dGEMRIC indices (less proteoglycan content) at the central medial femur region compared with compartments with normal menisci. Mean ± SEM differences in dGEMRIC indices between grade 3 and grade 0 menisci at the central medial femur were −119.1 ± 34.2 msec at baseline ( P = 0.03) and −120.3 ± 35.2 msec at followup ( P = 0.04). Conclusion High-grade damage of the medial meniscus showed significant associations with lower dGEMRIC indices. The dGEMRIC technique may be a useful tool in detecting early degenerative changes of cartilage when meniscal function is lost. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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34. The impact of arthritis on pain and quality of life: an Australian survey.
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Hunter, David J. and Riordan, Edward A.
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ARTHRITIS , *QUALITY of life , *HEALTH surveys , *PAIN management , *DRUG administration , *PSYCHOLOGY - Abstract
Objective To determine the impact of arthritis pain and quality of life among adults with arthritis-related pain in Australia. Methods A cross-sectional survey was conducted on a convenience sample of adults with arthritis-related pain in Australia from an access research panel. The survey was administered to 1039 participants who reported experiencing pain or loss of mobility as a result of their arthritis. The survey covered details of their condition, descriptions of the pain, impacts of pain on their daily lives, information regarding pain management and medication, the Measure of Intermittent and Constant Osteoarthritis Pain ( ICOAP) tool, the EQ5 D (a standardized measure of health tool) and demographic information. Results Osteoarthritis ( OA) was the most common form of arthritis (69% of respondents). The back (65%), knees (64%) and fingers (61%) were the regions in which pain was most commonly reported; 87% of respondents reported that their pain tended to change in intensity, with exercise and cold weather producing significantly increased levels of pain. Forty-seven percent of patients reported that the worst impact of arthritis was on their capacity to carry out activities of daily living. The majority of patients (71%) found their pain management programs to be of 'medium effectiveness' or 'fairly effective', although 17% described it as ineffective. Conclusion Persons with arthritis in Australia demonstrate marked pain-related functional impairment characterized by difficulty with many aspects of daily activity. The results suggest that a substantial benefit may be derived from increased awareness of the disease and increased knowledge about the potential for improved management. [ABSTRACT FROM AUTHOR]
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- 2014
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35. Osteoarthritis in 2020 and beyond: a Lancet Commission.
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Hunter, David J, March, Lyn, and Chew, Mabel
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OSTEOARTHRITIS , *PAIN medicine , *OPIOID abuse - Abstract
Osteoarthritis affects 7% of the global population, more than 500 million people worldwide, with women disproportionately affected by the condition.[1] The number of people affected globally rose by 48% from 1990 to 2019, and in 2019 osteoarthritis was the 15th highest cause of years lived with disability (YLDs) worldwide and was responsible for 2% of the total global YLDs.[[1]] Although YLDs for osteoarthritis are higher in high Socio-demographic Index (SDI) countries than in middle SDI regions (about 525 vs 220 YLDs per 100 000 population), since 1990 the rate of change in YLDs has been far greater in middle SDI countries than in high SDI countries (89% vs 48%).[[1]] Osteoarthritis is a leading cause of disability in older adults and the trends of an ageing population and increasing obesity are likely to compound this. The condition does not feature in global strategic plans for non-communicable diseases, yet osteoarthritis commonly coexists with heart disease, diabetes, and mental health problems and can worsen the morbidity and mortality associated with these conditions.[4] Patients with osteoarthritis also report that their concerns are downplayed by health practitioners.[5] Therapeutic nihilism may affect patients and practitioners, with misperceptions that osteoarthritis is an inevitable part of ageing and that there are no effective treatments. 46, 2016, 160-167 5 S Alami, I Boutron, D Desjeux, Patients' and practitioners' views of knee osteoarthritis and its management: a qualitative interview study. [Extracted from the article]
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- 2020
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36. TANGO: Development of Consumer Information Leaflets to Support TAperiNG of Opioids in Older Adults with Low Back Pain and Hip and Knee Osteoarthritis.
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Marcelo, Alessandra C., Ho, Emma K., Hunter, David J., Hilmer, Sarah N., Jokanovic, Natali, Prior, Joanna, Carvalho-e-Silva, Ana Paula, and Ferreira, Manuela L.
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LUMBAR pain , *KNEE osteoarthritis , *HIP osteoarthritis , *MEDICINE information services , *SCIENTIFIC observation , *ATTITUDES of medical personnel , *TIME , *CONSUMER attitudes , *HEALTH information services , *HUMAN services programs , *SURVEYS , *DRUG therapy , *DESCRIPTIVE statistics , *RESEARCH funding , *OPIOID analgesics , *PATIENT education , *PHARMACY information services , *EDUCATIONAL attainment - Abstract
Introduction: Globally, the rate of opioid prescription is high for chronic musculoskeletal conditions despite guidelines recommending against their use as their adverse effects outweigh their modest benefit. Deprescribing opioids is a complex process that can be hindered by multiple prescriber- and patient-related barriers. These include fear of the process of, or outcomes from, weaning medications, or a lack of ongoing support. Thus, involving patients, their carers, and healthcare professionals (HCPs) in the development of consumer materials that can educate and provide support for patients and HCPs over the deprescribing process is critical to ensure that the resources have high readability, usability, and acceptability to the population of interest. Objective: This study aimed to (1) develop two educational consumer leaflets to support opioid tapering in older people with low back pain (LBP) and hip or knee osteoarthritis (HoKOA), and (2) evaluate the perceived usability, acceptability, and credibility of the consumer leaflets from the perspective of consumers and HCPs. Design: This was an observational survey involving a consumer review panel and an HCP review panel. Participants: 30 consumers (and/or their carers) and 20 HCPs were included in the study. Consumers were people older than 65 years of age who were currently experiencing LBP or HoKOA, and with no HCP background. Carers were people who provided unpaid care, support, or assistance to an individual meeting the inclusion criteria for consumers. HCPs included physiotherapists (n = 9), pharmacists (n = 7), an orthopaedic surgeon (n = 1), a rheumatologist (n = 1), nurse practitioner (n = 1) and a general practitioner (n = 1), all with at least three years of clinical experience and who reported working closely with this target patient population within the last 12 months. Methods: Prototypes of two educational consumer leaflets (a brochure and a personal plan) were developed by a team of LBP, OA, and geriatric pharmacotherapy researchers and clinicians. The leaflet prototypes were evaluated by two separate chronological review panels involving (1) consumers and/or their carers, and (2) HCPs. Data collection for both panels occurred via an online survey. Outcomes were the perceived usability, acceptability, and credibility of the consumer leaflets. Feedback received from the consumer panel was used to refine the leaflets, before circulating the leaflets for further review by the HCP panel. Additional feedback from the HCP review panel was then used to refine the final versions of the consumer leaflets. Results: Both consumers and HCPs perceived the leaflets and personal plan to be usable, acceptable, and credible. Consumers rated the brochure against several categories, which scored between 53 and 97% positive responses. Similarly, the overall feedback provided by HCPs was 85–100% positive. The modified System Usability Scale scores obtained from HCPs was 55–95% positive, indicating excellent usability. Feedback for the personal plan from both HCPs and consumers was largely positive, with consumers providing the highest positive ratings (80–93%). While feedback for HCPs was also high, we did identify that prescribers were hesitant to provide the plan to patients frequently (no positive responses). Conclusions: This study led to the development of a leaflet and personal plan to support the reduction of opioid use in older people with LBP or HoKOA. The development of the consumer leaflets incorporated feedback provided by HCPs and consumers to maximise clinical effectiveness and future intervention implementation. Plain Language Summary: Opioids are medications that are often used to treat severe or chronic pain. However, they can have serious adverse effects and are not usually recommended for long-term use. This study aimed to create educational materials for patients with chronic low back pain or hip or knee osteoarthritis who are taking opioids and to evaluate the materials' perceived usability, acceptability, and credibility from the perspective of both healthcare professionals (HCPs) and patients. The materials included a brochure and a personal plan and were developed by a team of researchers and clinicians. Both materials were evaluated by HCPs and patients in separate review panels. The brochure and personal plan were found to be usable, acceptable, and credible by both groups. The materials were created to support patients in reducing their opioid use and were refined based on feedback from both HCPs and patients. The materials may be useful in supporting the complex process of tapering off opioids, which can be hindered by various barriers related to both patients and HCPs. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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37. Noncommunicable Diseases.
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Hunter, David J. and Reddy, K. Srinath
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NON-communicable diseases , *DEATH rate , *ECONOMIC aspects of diseases - Abstract
The article discusses the burden of noncommunicable diseases and the issues that must be addressed related to these diseases in order to meet the goal of the World Health Organization (WHO) and the United Nations for a 25% reduction in mortality by 2025. According to WHO estimates, 36 million of deaths globally were contributed by noncommunicable diseases in 2008. It mentions that noncommunicable disease will cause the world with $47 trillion cumulative output loss between 2011 and 2030.
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- 2013
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38. A Response to Rudolf Klein: A Battle May Have Been Won but Perhaps Not the War.
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Hunter, David J.
- Subjects
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ATTITUDE (Psychology) , *CHANGE , *CONTRACTING out , *HEALTH care reform , *PROPRIETARY health facilities , *HEALTH services accessibility , *ORGANIZATIONAL change , *PRACTICAL politics , *PUBLIC welfare , *ORGANIZATIONAL structure , *PUBLIC sector , *ECONOMIC competition - Abstract
The British National Health Service (NHS) is undergoing possibly the most far-reaching set of changes in its sixty-five-year history.While some commentators (like Rudolf Klein) insist that little of substance is likely to change, others consider that the politics of reform may prove quite different on this occasion. The coalition government is committed to restructuring the welfare state and public services and to rolling back the state. The NHS as a popular monopoly public service runs counter to its neoliberal ideology. While (for now) remaining committed to a publicly funded system of health care that is largely free at point of use, the government wishes to encourage much greater diversity in the provision of care, including a much larger role for the for-profit private sector. Despite significant opposition to its proposals, few concessions have been forthcoming, and the legislation that passed onto the statute book in March 2012 remained essentially unchanged.Notwithstanding the lack of convincing evidence, the government is wedded to encouraging greater competition and choice. Those who believe the changes will amount to far less than its architects hope for are being too complacent and overlooking the strength of the government's ideological convictions. These threaten to dismantle the NHS and replace it with a more costly, fragmented, and less effective system of care that is driven by profit in place of the public interest. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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39. Post-traumatic osteoarthritis: from mouse models to clinical trials.
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Hunter, David J. and Little, Christopher B.
- Subjects
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POST-traumatic stress disorder , *OSTEOARTHRITIS , *JOINT diseases , *SOCIOECONOMIC factors , *CLINICAL trials , *PATHOLOGICAL physiology , *LABORATORY mice - Abstract
Osteoarthritis (OA), the most common of all arthropathies, is a leading cause of disability and has a large (and growing) worldwide socioeconomic cost. Despite its burgeoning importance, translation of disease-modifying OA therapies from the laboratory into clinical practice has slowed. Differences between the OA models studied preclinically and the disease evaluated in human clinical trials contribute to this failure. Most animal models of OA induce disease through surgical or mechanical disruption of joint biomechanics in young individuals rather than the spontaneous development of age-associated disease. This instability-induced joint disease in animals best models the arthritis that develops in humans after an injurious event, known as post-traumatic OA (PTOA). Studies in genetically modified mice suggest that PTOA has a distinct molecular pathophysiology compared with that of spontaneous OA, which might explain the poor translation from preclinical to clinical OA therapeutic trials. This Review summarizes the latest data on potential molecular targets for PTOA prevention and modification derived from studies in genetically modified mice, and describes their validation in preclinical therapeutic trials. This article focuses on how these findings might best be translated to humans, and identifies the potential challenges to successful implementation of clinical trials of disease-modifying drugs for PTOA. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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40. Post-traumatic osteoarthritis: from mouse models to clinical trials.
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Little, Christopher B and Hunter, David J
- Abstract
Osteoarthritis (OA), the most common of all arthropathies, is a leading cause of disability and has a large (and growing) worldwide socioeconomic cost. Despite its burgeoning importance, translation of disease-modifying OA therapies from the laboratory into clinical practice has slowed. Differences between the OA models studied preclinically and the disease evaluated in human clinical trials contribute to this failure. Most animal models of OA induce disease through surgical or mechanical disruption of joint biomechanics in young individuals rather than the spontaneous development of age-associated disease. This instability-induced joint disease in animals best models the arthritis that develops in humans after an injurious event, known as post-traumatic OA (PTOA). Studies in genetically modified mice suggest that PTOA has a distinct molecular pathophysiology compared with that of spontaneous OA, which might explain the poor translation from preclinical to clinical OA therapeutic trials. This Review summarizes the latest data on potential molecular targets for PTOA prevention and modification derived from studies in genetically modified mice, and describes their validation in preclinical therapeutic trials. This article focuses on how these findings might best be translated to humans, and identifies the potential challenges to successful implementation of clinical trials of disease-modifying drugs for PTOA. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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41. Long-term effects of sport: preventing and managing OA in the athlete.
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Bennell, Kim, Hunter, David J., and Vicenzino, Bill
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- *
SPORTS participation , *OSTEOARTHRITIS , *JOINT injuries , *NEUROMUSCULAR diseases , *SPORTS injuries - Abstract
Sports participation is associated with an increased risk of future osteoarthritis (OA), much of which results from joint injury. No strong evidence exists that moderate sporting activity in the presence of normal joints predisposes to OA. Whether high-level participation in sport, particularly impact-type sports, is truly associated with OA is unclear owing to difficulties in differentiating the confounding effect of joint injury. Attention to strategies that prevent joint injury in athletes is paramount. Evidence does support the use of targeted neuromuscular exercise programmes, ankle taping and/or bracing and equipment or rule changes to prevent joint injuries in athletes. Optimal injury management, including rehabilitation and surgery if appropriate, is needed to facilitate healing and address biomechanical and neuromuscular impairments to reduce the risk of re-injury and minimize the onset and extent of joint symptoms. Management of OA in athletes requires attention to load-reducing strategies, activity modification, muscle strengthening and weight control. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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42. Tackling the Health Divide in Europe: The Role of the World Health Organization.
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Hunter, David J.
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HEALTH policy , *PUBLIC health , *HEALTH care reform , *HEALTH status indicators , *LIFE expectancy , *PREVENTIVE health services , *LIFESTYLES , *HEALTH equity - Abstract
Europe faces major health challenges in addition to its well-reported economic and financial difficulties. Despite the overall improvement in population health, significant inequalities remain, with a growing gap between rich and poor. WHO Europe, covering fifty-three member states, is committed to helping European governments meet the complex challenge posed by the "silent epidemic" of noncommunicable diseases. In September 2012 WHO launched Health 2020, an ambitious new health policy framework and strategy. Its success requires a whole-of-government and whole-of-society approach to improving health and well-being, informed by the latest evidence on cost-effective interventions. This review considers the prospects for success. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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43. Quantitative assessment of abdominal aortic calcification and associations with lumbar intervertebral disc height loss: the Framingham Study
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Suri, Pradeep, Hunter, David J., Rainville, James, Guermazi, Ali, and Katz, Jeffrey N.
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INTERVERTEBRAL disk diseases , *CALCIFICATION , *ABDOMINAL aorta , *TOMOGRAPHY , *HEALTH outcome assessment , *CARDIOVASCULAR diseases risk factors - Abstract
Abstract: Background context: Vascular disease has been proposed as a risk factor for disc height loss (DHL). Purpose: To examine the relationship between quantitative measures of abdominal aortic calcifications (AACs) as a marker of vascular disease, and DHL, on computed tomography (CT). Study design: Cross-sectional study in a community-based population. Patient sample: Four hundred thirty-five participants from the Framingham Heart Study. Outcome measures: Quantitative AAC scores assessed by CT were grouped as tertiles of “no” (reference), “low,” and “high” calcification. Disc height loss was evaluated on CT reformations using a four-grade scale. For analytic purposes, DHL was dichotomized as moderate DHL of at least one level at L2–S1 versus less than moderate or no DHL. Methods: We examined the association of AAC and DHL using logistic regression before and after adjusting for cardiovascular risk factors and before and after adjusting for age, sex, and body mass index (BMI). Results: In crude analyses, low AAC (odds ratio [OR], 2.05 [1.27–3.30]; p=.003) and high AAC (OR, 2.24 [1.38–3.62]; p=.001) were strongly associated with DHL, when compared with the reference group of no AAC. Diabetes, hypercholesterolemia, hypertension, and smoking were not associated with DHL and did not attenuate the observed relationship between AAC and DHL. Adjustment for age, sex, and BMI markedly attenuated the associations between DHL and low AAC (OR, 1.20 [0.69–2.09]; p=.51) and high AAC (OR, 0.74 [0.36–1.53]; p=.42). Conclusions: Abdominal aortic calcification was associated with DHL in this community-based population. This relationship was independent of cardiovascular risk factors. However, the association of AAC with DHL was explained by the effects of age, sex, and BMI. [Copyright &y& Elsevier]
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- 2012
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44. Lower extremity osteoarthritis management needs a paradigm shift.
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Hunter, David J
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The current pre-eminent focus in osteoarthritis research and clinical practice is on persons with established radiographic disease. This is the very end-stage of disease genesis and modern therapies are thus largely palliative. A major shift in the focus of osteoarthritis research and clinical practice is critically needed if an impact is to be made for the millions living with the chronic pain and disability of osteoarthritis. The disease management paradigm needs to be revolutionised to focus on persons at high risk of developing or with early disease in which structural changes may be preventable or reversible. Similarly, current palliation should shift towards coordinated conservative management with reorganisation of the delivery of health services. [ABSTRACT FROM PUBLISHER]
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- 2011
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45. Nonsurgical Treatment of Lumbar Disk Herniation: Are Outcomes Different in Older Adults?
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Suri, Pradeep, Hunter, David J., Jouve, Cristin, Hartigan, Carol, Limke, Janet, Pena, Enrique, Li, Ling, Luz, Jennifer, and Rainville, James
- Subjects
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INTERVERTEBRAL disk displacement , *AGE distribution , *CHI-squared test , *COMPARATIVE studies , *COMPUTER software , *LONGITUDINAL method , *MULTIVARIATE analysis , *MUSCLE strength testing , *HEALTH outcome assessment , *PHYSICAL diagnosis , *PROBABILITY theory , *STATISTICS , *T-test (Statistics) , *DATA analysis , *PAIN measurement , *VISUAL analog scale , *TREATMENT effectiveness , *THERAPEUTICS - Abstract
To determine whether older adults (aged ≥60) experience less improvement in disability and pain with nonsurgical treatment of lumbar disk herniation (LDH) than younger adults (<60). Prospective longitudinal comparative cohort study. Outpatient specialty spine clinic. One hundred thirty-three consecutive patients with radicular pain and magnetic resonance-confirmed acute LDH (89 younger, 44 older). Nonsurgical treatment customized for the individual patient. Patient-reported disability on the Oswestry Disability Index (ODI), leg pain intensity, and back pain intensity were recorded at baseline and 1, 3, and 6 months. The primary outcome was the ODI change score at 6 months. Secondary longitudinal analyses examined rates of change over the follow-up period. Older adults demonstrated improvements in ODI (range 0-100) and pain intensity (range 0-10) with nonsurgical treatment that were not significantly different from those seen in younger adults at 6 month follow-up, with or without adjustment for potential confounders. Adjusted mean improvement in older and younger adults were 31 versus 33 ( P=.63) for ODI, 4.5 versus 4.5 ( P=.99) for leg pain, and 2.4 versus 2.7 for back pain ( P=.69). A greater amount of the total improvement in leg pain and back pain in older adults was noted in the first month of follow-up than in younger adults. These preliminary findings suggest that the outcomes of LDH with nonsurgical treatment were not worse in older adults (≥60) than in younger adults (<60). Future research is warranted to examine nonsurgical treatment for LDH in older adults. [ABSTRACT FROM AUTHOR]
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- 2011
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46. Pharmacologic therapy for osteoarthritis--the era of disease modification.
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Hunter, David J.
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DRUG development , *THERAPEUTICS , *PALLIATIVE treatment , *OSTEOARTHRITIS , *CLINICAL trials , *DISEASE progression , *RESEARCH , *RESEARCH methodology , *EVALUATION research , *MEDICAL cooperation , *ANTIRHEUMATIC agents , *TREATMENT effectiveness , *COMPARATIVE studies , *DRUG therapy , *KINEMATICS - Abstract
Osteoarthritis (OA) is a prevalent and disabling condition for which few safe and effective therapeutic options are available. Current approaches are largely palliative and in an effort to mitigate the rising tide of increasing OA prevalence and disease impact, modifying the structural progression of OA has become a focus of drug development. This Review describes disease modification and discusses some of the challenges involved in the discovery and development of disease-modifying OA drugs (DMOADs). A variety of targeted agents are in mature phases of development; specific agents that are beyond preclinical development in phase II and III trials and show promise as potential DMOADs are discussed. A research agenda with respect to disease modification in OA is also provided, and some of the future challenges we face in this field are discussed. [ABSTRACT FROM AUTHOR]
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- 2011
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47. Inciting events associated with lumbar disc herniation
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Suri, Pradeep, Hunter, David J., Jouve, Cristin, Hartigan, Carol, Limke, Janet, Pena, Enrique, Swaim, Bryan, Li, Ling, and Rainville, James
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INTERVERTEBRAL disk hernias , *CROSS-sectional method , *RADICULOPATHY , *MAGNETIC resonance imaging , *PAIN measurement , *BACKACHE exercise therapy , *COHORT analysis , *ACTIVITIES of daily living - Abstract
Abstract: Background context: No prior study has investigated the frequency of patient-identified inciting events in lumbar disc herniation (LDH) or their clinical significance. Purpose: To examine the clinical frequency of patient-identified inciting events in LDH, and to identify associations between the presence of inciting events and the severity of the clinical presentation. Study design/setting: Cross-sectional analysis of data from a cohort study with prospective recruitment, with retrospective data collection on inciting events. The setting was a hospital-based specialty spine clinic. Patient sample: One hundred fifty-four adults with lumbosacral radicular pain and LDH confirmed by magnetic resonance imaging. Outcome measures: Self-report measures of disability measured by the Oswestry Disability Index (ODI), the visual analog scale (VAS) for leg pain, and the VAS for back pain. Methods: Dependent variables included the presence of a patient-identified inciting event, which were categorized as spontaneous onset, nonlifting physical activity, heavy lifting (>35 lbs), light lifting (<35 lbs), nonexertional occurrence, or physical trauma. We examined the association of an inciting event, or a lifting-related event, with each outcome, first using univariate analyses, and second using multivariate modeling, accounting for important adjustment variables. Results: Sixty-two percent of LDH did not have a specific patient-identified event associated with onset of symptoms. Nonlifting activities were the most common inciting event, comprising 26% of all LDH. Heavy lifting (6.5%), light lifting (2%), nonexertional occurrences (2%), and physical trauma (1.3%) accounted for relatively small proportions of all LDH. Patient-identified inciting events were not significantly associated with a more severe clinical presentation in crude analyses. Spontaneous LDH was significantly associated with higher baseline ODI scores in multivariate analysis, although the magnitude of this effect was small. There were no significant associations (p≤.05) between the presence of a lifting-associated event and the outcomes of ODI, VAS leg pain, or VAS back pain. Conclusions: The majority of LDH occurred without specific inciting events. A history of an inciting event was not significantly associated with a more severe clinical presentation. There was no significant association between the occurrence of a lifting-related event and the severity of the clinical presentation. This information may be useful in the counseling of patients recovering from acute LDH. [Copyright &y& Elsevier]
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- 2010
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48. Bias in the physical examination of patients with lumbar radiculopathy.
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Suri, Pradeep, Hunter, David J., Katz, Jeffrey N., Ling Li, and Rainville, James
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AMBULATORY surgery , *STIFLE joint , *DIAGNOSTIC imaging , *MAGNETIC resonance imaging , *RADIOGRAPHY - Abstract
Background: No prior studies have examined systematic bias in the musculoskeletal physical examination. The objective of this study was to assess the effects of bias due to prior knowledge of lumbar spine magnetic resonance imaging findings (MRI) on perceived diagnostic accuracy of the physical examination for lumbar radiculopathy. Methods: This was a cross-sectional comparison of the performance characteristics of the physical examination with blinding to MRI results (the 'independent group') with performance in the situation where the physical examination was not blinded to MRI results (the 'non-independent group'). The reference standard was the final diagnostic impression of nerve root impingement by the examining physician. Subjects were recruited from a hospital-based outpatient specialty spine clinic. All adults age 18 and older presenting with lower extremity radiating pain of duration ≤ 12 weeks were evaluated for participation. 154 consecutively recruited subjects with lumbar disk herniation confirmed by lumbar spine MRI were included in this study. Sensitivities and specificities with 95% confidence intervals were calculated in the independent and non-independent groups for the four components of the radiculopathy examination: 1) provocative testing, 2) motor strength testing, 3) pinprick sensory testing, and 4) deep tendon reflex testing. Results: The perceived sensitivity of sensory testing was higher with prior knowledge of MRI results (20% vs. 36%; p = 0.05). Sensitivities and specificities for exam components otherwise showed no statistically significant differences between groups. Conclusions: Prior knowledge of lumbar MRI results may introduce bias into the pinprick sensory testing component of the physical examination for lumbar radiculopathy. No statistically significant effect of bias was seen for other components of the physical examination. The effect of bias due to prior knowledge of lumbar MRI results should be considered when an isolated sensory deficit on examination is used in medical decision-making. Further studies of bias should include surgical clinic populations and other common diagnoses including shoulder, knee and hip pathology. [ABSTRACT FROM AUTHOR]
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- 2010
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49. Phase 1 safety and tolerability study of BMP-7 in symptomatic knee osteoarthritis.
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Hunter, David J., Pike, Marilyn C., Jonas, Beth L., Kissin, Eugene, Krop, Julie, and McAlindon, Tim
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OSTEOARTHRITIS , *KNEE diseases , *PAIN , *PLACEBOS , *DRUG dosage - Abstract
Background: There are no proven therapies that modify the structural changes associated with osteoarthritis (OA). Preclinical data suggests that intra-articular recombinant human BMP-7 (bone morphogenetic protein-7) has reparative effects on cartilage, as well as on symptoms of joint pain. The objective of this study was to determine the safety and tolerability as well as dose-limiting toxicity and maximal tolerated dose of intra-articular BMP-7. The secondary objectives were to determine the effect on symptomatic responses through 24 weeks. Methods: This was a Phase 1, double-blind, randomized, multi-center, placebo-controlled, single-dose escalation safety study consisting of 4 dosing cohorts in participants with knee OA. Each cohort was to consist of 8 treated participants, with treatment allocation in a 3:1 active (intra-articular BMP-7) to placebo ratio. Eligible participants were persons with symptomatic radiographic knee OA over the age of 40. The primary objective of this study was to determine the safety and tolerability of BMP-7 including laboratory assessments, immunogenicity data and radiographic assessments. Secondary objectives were to determine the proportion of participants with a 20%, 50%, and 70% improvement in the WOMAC pain and function subscales at 4, 8, 12, and 24 weeks. Other secondary outcomes included the change from baseline to 4, 8, 12, and 24 weeks for the OARSI responder criteria. Results: The mean age of participants was 60 years and 73% were female. All 33 participants who were enrolled completed the study and most adverse events were mild or moderate and were similar in placebo and BMP-7 groups. The 1 mg BMP-7 group showed a higher frequency of injection site pain and there was no ectopic bone formation seen on plain x-rays. By week 12, most participants in both the BMP-7 and placebo groups experienced a 20% improvement in pain and overall the BMP-7 group was similar to placebo with regard to this measurement. In the participants who received 0.1 mg and 0.3 mg BMP-7, there was a trend toward greater symptomatic improvement than placebo. The other secondary endpoints showed similar trends including the OARSI responder criteria for which the BMP-7 groups had more responders than placebo. Conclusions: There was no dose limiting toxicity identified in this study. The suggestion of a symptom response, together with the lack of dose limiting toxicity provide further support for the continued development of this product for the treatment of osteoarthritis. [ABSTRACT FROM AUTHOR]
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- 2010
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50. Uncertainty in the Era of Precision Medicine.
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Hunter, David J.
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The article discusses the uncertainty in precision medicine in terms of the outcomes of tailoring medical treatment and interpreting evidence on prognosis of cancer. It states that the era of precision medicine does not imply it can be certain that molecular mechanisms that therapeutic decisions should not be subject to adequately powered research trials. The study which examines the classified women to clinical and genomic risks of adjuvant chemotherapy is highlighted.
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- 2016
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