Search

Objective: To determine the prevalence of radiographic patellofemoral osteoarthritis (OA) from population- and symptom-based cohorts and to evaluate if knee pain, physical function and quality of life (QOL) differ between people with isolated patellofemoral OA, isolated tibiofemoral OA and combined patellofemoral and tibiofemoral OA.Method: Terms associated with "patellofemoral OA", "prevalence" and "clinical features" were used to search Medline, EMBASE, CINAHL, SCOPUS, AMED and Web of Science databases with no language restriction' from inception to August 2014. Two independent reviewers screened papers for eligibility. Studies were included if they reported prevalence of compartmental patterns of radiographic knee OA in population- or symptom-based cohorts. Studies were excluded if they evaluated a targeted sample (e.g., occupation-specific participants) or repeated already reported data from the same cohorts. Point prevalence estimates of patellofemoral OA were extracted from eligible studies, pooled and quantitatively analysed. A critical appraisal tool was used to evaluate methodological quality.Results: The search yielded 1891 records. The inclusion criteria were met by 32 studies. The crude prevalence of patellofemoral OA was 25% in the population-based cohorts (aged >20 years) and 39% in the symptom-based cohorts (aged >30 years). Eight studies reported knee pain, physical function and QOL in people with different compartmental disease; however no significant differences were found.Conclusion: These findings confirm the substantial prevalence of patellofemoral OA, demonstrating the need to specifically consider the patellofemoral joint in knee OA research and clinical settings. [ABSTRACT FROM AUTHOR]

Summary: Objective: The increasingly shorter hospitalization following total knee arthroplasty (TKA) requires patients to assume earlier responsibility to self-manage their pain. Poorly managed acute pain increases the risk of persistent pain, reduces quality of life and increases unnecessary healthcare utilization. This study aims to examine post-discharge pain intensity, pain management behaviors and potential barriers to optimal self-management of pain. Design: We administered a questionnaire at 2 weeks after discharge to 174 patients undergoing TKA in 10 Australian hospitals. Participants rated pain expectation and severity, use of analgesics and non-pharmacological methods, side-effects, walking and exercise times, perceptions of analgesics, adequacy of pain management information provided and satisfaction with pain relief. Results: Of 171 (98%) participants who completed the questionnaire, 88 (52%) reported that the worst pain period occurred during the first 2 weeks at home. During the first 2 weeks at home, the average pain was ‘severe/extreme’ for 40 (23%) participants and 92 (54%) experienced severe pain at least some of the time. Many participants sought further medical help for their pain. Adequate information on analgesics and non-pharmacological methods for pain relief were reported by only 73% and 47%, respectively. Approximately 20% had negative perceptions about analgesic use. Higher pain severity was associated with lower satisfaction and less time spent walking daily. Conclusions: Effective pain relief after hospital discharge following TKA is a challenge. Many participants reported significant pain, sought further medical help for pain relief and had inadequate information at discharge to effectively self-manage their postoperative knee pain. [Copyright &y& Elsevier]

Summary: Objective: To determine the burden and risk factors associated with reduced work productivity among people with chronic knee pain. Method: A longitudinal study, nested within a randomised controlled trial (RCT) evaluating the long-term effects of dietary supplements, was conducted among people with chronic knee pain in paid employment (n = 360). Participants recorded days off work (absenteeism) and reduced productivity while at work (presenteeism) for seven days every two months over a 12-month period in a study specific diary. Examined risk factors included knee pain severity, occupational group, radiographic disease severity, physical activity, body mass index (BMI), health-related quality of life (SF-12) and co-morbidity. Results: Over the 12-month follow up period, 50 (14%) participants reported one or more days off work due to knee problems, while 283 (79%) reported reduced productivity while at work (presenteeism <100%). In multivariate analysis, the only significant risk factor for absenteeism was having an SF-12 Mental Component Summary (MCS) score <40 (OR: 2.49 [95% CI: 1.03–5.98]). Significant risk factors for presenteeism included; reporting an; SF-12 Physical Component Summary (PCS) score <50 (OR: 1.99 [95% CI: 1.05–3.76]), semi-manual labour (OR: 2.23 [1.09–4.59]) or manual labour (OR: 6.40 [1.44–28.35]) or a high maximum knee pain (4–6 out of 10) (OR: 2.29 [1.17–4.46]). Conclusions: This longitudinal study found that among this cohort of people with chronic knee pain, the burden of reduced work productivity is mainly attributable to presenteeism rather absenteeism. This study demonstrated that effective strategies to increase work productivity should focus on reducing knee pain or physical disability especially among workers in manual or semi-manual labour. [Copyright &y& Elsevier]

Summary: Objective: To determine if clinical guidelines recommending therapeutic exercise for people with hip osteoarthritis (OA) are supported by rigorous scientific evidence. Methods: A meta-analysis of randomized controlled trials (RCTs) recruiting people with hip OA and comparing some form of land-based exercise program (as opposed to exercises conducted in the water) with a non-exercise group in terms of hip pain and/or self-reported physical function. Results: Thirty-two RCTs were identified, but only five met the inclusion criteria. Only one of the five included RCTs restricted recruitment to people with hip OA, the other four RCTs also recruiting participants with knee OA. The five included studies provided data on 204 and 187 hip OA participants for pain and physical function, respectively. Combining the results of the five included RCTs using a fixed-effects model demonstrated a small treatment effect for pain (standardized mean difference (SMD) −0.38; 95% confidence interval (CI) −0.67 to −0.09). No significant benefit in terms of improved self-reported physical function was detected (SMD −0.02; 95% CI −0.31 to 0.28). Conclusion: Currently there is only silver level evidence (one small RCT) supporting the benefit of land-based therapeutic exercise for people with symptomatic hip OA in terms of reduced pain and improved physical function. The limited number and small sample size of the included RCTs restricts the confidence that can be attributed to these results. [Copyright &y& Elsevier]