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1. Clinical and Biomechanical Effects of Femoral Neck Buttress Plate used for Vertical Femoral Neck Fractures

Author

Andrew, Steffensmeier, Nihar, Shah, Michael, Archdeacon, David, Watson, Roy W, Sanders, and Henry C, Sagi

Subjects
Male, Fracture Fixation, Internal, Femur Neck, Bone Screws, Humans, General Earth and Planetary Sciences, Female, Bone Plates, Aged, Femoral Neck Fractures, General Environmental Science
Abstract

To investigate both the biomechanical and clinical effect of an inferomedial femoral neck buttress plate (FNBP) used to augment a sliding hip screw (SHS) and anti-rotational screw (ARS) in the treatment of traumatic vertical femoral neck fractures.Part 1: Clinical - Retrospective review of patients under age 65 treated with open reduction of a vertical femoral neck fracture. Patients were divided into two groups: Group 1 patients (18 patients) had SHS/ARS fixation augmented with a FNBP, while Group 2 patients (18 patients) had SHS/ARS fixation alone and were matched for age and sex. Demographic data, OTA fracture classification, immediate post-operative and follow-up radiographs were analyzed for quality of reduction, femoral neck shortening (FNS), neck-shaft angle (NSA), avascular necrosis (AVN) and union. Part 2: Biomechanical - Pauwels III femoral neck osteotomy was created in five pairs of cadaveric specimens, then each fracture was reduced and stabilized with a SHS/ARS construct. Specimens were matched and split into Groups 1 and 2, similar to Part 1. Cadaveric specimens were axially loaded in cyclical fashion to analyze for construct stiffness, fracture displacement femoral neck shortening and changes in the neck shaft angle.Part 1: There were 18 matched patients (14 males and 4 females) in both Group 1 and Group 2. There were no statistically significant differences between the two groups with respect to Pauwels angle, femoral neck shortening, changes in neck-shaft angle, AVN or nonunion. One reoperation in Group 1 and four in Group 2. Part 2: All five cadaveric specimens in both groups survived the 10,000-cycle loading regimen. We were unable to detect any significant differences between the two groups with respect to construct stiffness, change in neck-shaft angle or amount of femoral neck shortening.Based on the results of both clinical case series and biomechanical testing, an inferomedial neck buttress plate does not appear to offer long-term benefits with respect to maintenance of alignment or achieving union but may potentially help in obtaining the reduction.

Published
2022

2. An Organizational Approach to Addressing Racism in Orthopaedic Surgery

Author

Jaysson T, Brooks, Tonya, Dixon, Bonnie, Simpson Mason, and Michael, Archdeacon

Subjects
Orthopedics, Racism, Humans, Internship and Residency, Orthopedic Procedures, Orthopedics and Sports Medicine, Surgery, General Medicine, Personnel Selection, United States
Abstract

This article highlights the key topics that were presented at a symposium of the American Orthopaedic Association in May 2021, with the primary objectives of acknowledging the existence of systemic racism within the field of orthopaedic surgery, developing a plan for combating racism before it manifests within orthopaedic departments and practices, and understanding the benefit of pipeline programs in diversifying the orthopaedic surgeon workforce. When the word racism is mentioned among a group of orthopaedic surgeons, it may have the immediate effect of stifling honest conversations. Therefore, the crippling effects of racism within orthopaedic surgery are not addressed, and there are downstream effects that influence patient care by perpetuating disparities in health care. If orthopaedic departments want to fix the lack of diversity within the specialty, the magnitude of the problem must first be measured. Fortunately, through the efforts of the J. Robert Gladden Orthopaedic Society, data sets are being created that better measure the diversity of individual orthopaedic residency programs. In addition to hiring diverse faculty, orthopaedic departments and practices should focus on the mentorship, sponsorship, retention, and promotion of these faculty. Finally, pipeline programs such as Nth Dimensions have a proven track record for improving the diversity of the orthopaedic workforce and can serve as the primary mechanism employed by departments and practices in making their orthopaedic surgeon workforce look more like the demographics of the United States.

Published
2022

3. Complex Proximal Tibia Fractures: Workup, Surgical Approaches, and Definitive Treatment Options

Author

Nirmal C, Tejwani, Michael, Archdeacon, Edward, Harvey, Steven F, Shannon, Ian, McAlister, and Marcus F, Sciadini

Subjects
Tibial Fractures, Fracture Fixation, Internal, Tibia, Fracture Fixation, Humans, Plastic Surgery Procedures
Abstract

Proximal tibia fractures including intra-articular plateau fractures are complex injuries that benefit from an algorithmic approach in terms of treatment to optimize outcomes and minimize complications. Certainly, nonsurgical treatment will be an option for some injuries; however, this chapter will focus on those injuries best addressed with surgicalsurgical treatment. Indications for surgical treatment include joint incongruity, joint instability and limb malalignment. In regard to surgical treatment, important considerations include appropriate management of the soft-tissue envelope, staged provisional reduction and stabilization versus immediate definitive fixation, single versus multiple surgical approaches, unilateral versus bicondylar fixation, and treatment of concomitant fracture-dislocation. This chapter describes surgical approaches to the proximal tibia ranging from the standard anterolateral to complex dual approaches or posterior approaches. Soft-tissue management becomes important due to the high-energy nature of these injuries with trauma both at the time of injury and then the surgical insult. Learning to identify and minimize these risks as well as addressing the soft-tissue defects that may require treatment is highlighted. Implant selection and fixation options for bicondylar plateau fractures will be discussed. Finally, use of nails, especially suprapatellar nails for proximal extra-articular proximal tibia fractures is described.

Published
2020

4. Unstable Proximal Femur Fractures Treated With Proximal Femoral Locking Plates: A Retrospective, Multicenter Study of 111 Cases

Author

Cory A, Collinge, Robert, Hymes, Michael, Archdeacon, Phillip, Streubel, William, Obremskey, Timothy, Weber, J Tracy, Watson, David, Lowenberg, and Elyse, Brinkman

Subjects
Joint Instability, Male, Reoperation, musculoskeletal diseases, medicine.medical_specialty, Bone Screws, Bone healing, Locking plate, Fracture Fixation, Internal, 03 medical and health sciences, Postoperative Complications, 0302 clinical medicine, Risk Factors, Bone plate, Fracture fixation, Prevalence, Humans, Locked plate, Medicine, Orthopedics and Sports Medicine, Femur, Treatment Failure, 030212 general & internal medicine, Retrospective Studies, Fracture Healing, 030222 orthopedics, Proximal femur, Hip Fractures, business.industry, General Medicine, Middle Aged, musculoskeletal system, United States, Prosthesis Failure, Surgery, Treatment Outcome, Multicenter study, Female, business, Bone Plates
Abstract

A few small case series have found that proximal femur fractures treated with a proximal femur locking plate (PFLP) have experienced more failures than expected. The purpose of this study was to review the clinical results of patients with acute, unstable proximal femur fractures treated with proximal femoral locking plates in a large, multicenter patient cohort.This is a retrospective clinical study.The study included patients from 12 regional trauma centers and tertiary referral hospitals.One hundred eleven consecutive patients with unstable proximal femur fractures stabilized with a PFLP and having required clinical and radiographic follow-up at a minimum of 12 months after injury.Surgical repair of an unstable proximal femur fracture with a PFLP.Treatment failures (failure of fixation, nonunion, and malunion) and need for revision surgery.Forty-six patients (41.4%) experienced a major treatment failure, including failed fixation with or without nonunion (39), surgical malalignment or malunion (18), deep infection (8), or a combination of these. Thirty-eight (34%) patients underwent secondary surgeries, including 30 for failed fixation, nonunion, or both. Treatment failure was found to occur at a significantly higher rate in patients with major comorbidities, in femurs repaired in varus malalignment, and using specific plate designs.Proximal femoral locking plates are associated with a high complication rate, frequently requiring revision or secondary surgeries in the treatment of unstable proximal femur fractures. Given the high complication rate with PFLPs, careful attention to reduction, use of a PFLP implant, and consideration should be given to alternative implants or fixation techniques when appropriate.Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Published
2016

5. Fracture fixation in the operative management of hip fractures (FAITH): an international, multicentre, randomised controlled trial

Author

Aaron Nauth, Aaron T. Creek, Abby Zellar, Abdel-Rahman Lawendy, Adam Dowrick, Ajay Gupta, Akhil Dadi, Albert van Kampen, Albert Yee, Alexander C. de Vries, Alexander de Mol van Otterloo, Alisha Garibaldi, Allen Liew, Allison W. McIntyre, Amal Shankar Prasad, Amanda W. Romero, Amar Rangan, Amber Oatt, Amir Sanghavi, Amy L. Foley, Anders Karlsten, Andrea Dolenc, Andrew Bucknill, Andrew Chia, Andrew Evans, Andrew Gong, Andrew H. Schmidt, Andrew J. Marcantonio, Andrew Jennings, Angela Ward, Angshuman Khanna, Anil Rai, Anke B. Smits, Annamarie D. Horan, Anne Christine Brekke, Annette Flynn, Aravin Duraikannan, Are Stødle, Arie B. van Vugt, Arlene Luther, Arthur W. Zurcher, Arvind Jain, Asgeir Amundsen, Ash Moaveni, Ashley Carr, Ateet Sharma, Austin D. Hill, Axel Trommer, B. Sachidananda Rai, Barbara Hileman, Bart Schreurs, Bart Verhoeven, Benjamin B. Barden, Bernhard Flatøy, Berry I. Cleffken, Berthe Bøe, Bertrand Perey, Birgit C. Hanusch, Brad Weening, Bram Fioole, Bram Rijbroek, Brett D. Crist, Brett Halliday, Brett Peterson, Brian Mullis, C. Glen Richardson, Callum Clark, Carlos A. Sagebien, Carmen C. van der Pol, Carol Bowler, Catherine A. Humphrey, Catherine Coady, Cees L. Koppert, Chad Coles, Chadi Tannoury, Charles J. DePaolo, Chris Gayton, Chris Herriott, Christina Reeves, Christina Tieszer, Christine Dobb, Christopher G. Anderson, Claire Sage, Claudine Cuento, Clifford B. Jones, Coks H.R. Bosman, Colleen Linehan, Cor P. van der Hart, Corey Henderson, Courtland G. Lewis, Craig A. Davis, Craig Donohue, Cyril Mauffrey, D.C. Sundaresh, Dana J. Farrell, Daniel B. Whelan, Daniel Horwitz, Daniel Stinner, Darius Viskontas, Darren M. Roffey, David Alexander, David E. Karges, David Hak, David Johnston, David Love, David M. Wright, David P. Zamorano, David R. Goetz, David Sanders, David Stephen, David Yen, Davide Bardana, Davy J Olakkengil, Deanna Lawson, Deborah Maddock, Debra L. Sietsema, Deeba Pourmand, Dennis Den Hartog, Derek Donegan, Diane Heels-Ansdell, Diane Nam, Dominic Inman, Dory Boyer, Doug Li, Douglas Gibula, Dustin M. Price, Dylan J. Watson, E. Mark Hammerberg, Edward T.C.H. Tan, Eelco J.R. de Graaf, Elise Berg Vesterhus, Elizabeth Roper, Elton Edwards, Emil H. Schemitsch, Eric R. Hammacher, Eric R. Henderson, Erica Whatley, Erick T. Torres, Erik G.J. Vermeulen, Erin Finn, Esther M.M. Van Lieshout, Eugene K. Wai, Evan R. Bannister, Evelyn Kile, Evert B.M. Theunissen, Ewan D. Ritchie, Farah Khan, Farhad Moola, Fiona Howells, Frank de Nies, Frank H.W.M. van der Heijden, Frank R.A.J. de Meulemeester, Frede Frihagen, Fredrik Nilsen, G. Ben Schmidt, G.H. Robert Albers, Garland K. Gudger, Garth Johnson, Gary Gruen, Gary Zohman, Gaurav Sharma, Gavin Wood, Geert W.M. Tetteroo, Geir Hjorthaug, Geir Jomaas, Geoff Donald, Geoffrey Ryan Rieser, Gerald Reardon, Gerard P. Slobogean, Gert R Roukema, Gijs A. Visser, Gilbert Moatshe, Gillian Horner, Glynis Rose, Gordon Guyatt, Graham Chuter, Greg Etherington, Gregory J. Della Rocca, Guri Ekås, Gwendolyn Dobbin, H. Michael Lemke, Hamish Curry, Han Boxma, Hannah Gissel, Hans Kreder, Hans Kuiken, Hans L.F. Brom, Hans-Christoph Pape, Harm M van der Vis, Harvinder Bedi, Heather A. Vallier, Heather Brien, Heather Silva, Heike Newman, Helena Viveiros, Henk van der Hoeven, Henry Ahn, Herman Johal, Herman Rijna, Heyn Stockmann, Hong A. Josaputra, Hope Carlisle, Igor van der Brand, Imro Dawson, Ivan Tarkin, Ivan Wong, J. Andrew Parr, J. Andrew Trenholm, J. Carel Goslings, J. David Amirault, J. Scott Broderick, Jaap P. Snellen, Jacco A.C. Zijl, Jaimo Ahn, James Ficke, James Irrgang, James Powell, James R. Ringler, James Shaer, James T. Monica, Jan Biert, Jan Bosma, Jan Egil Brattgjerd, Jan Paul M. Frölke, Jan Wille, Janakiraman Rajakumar, Jane E. Walker, Janell K. Baker, Janos P. Ertl, Jean Paul P.M. de Vries, Jean W.M. Gardeniers, Jedediah May, Jeff Yach, Jennifer T. Hidy, Jerald R. Westberg, Jeremy A. Hall, Jeroen van Mulken, Jessica Cooper McBeth, Jochem Hoogendoorn, Jodi M. Hoffman, Joe Joseph Cherian, John A. Tanksley, John Clarke-Jenssen, John D. Adams, John Esterhai, John F. Tilzey, John Murnaghan, John P. Ketz, John S. Garfi, John Schwappach, John T. Gorczyca, John Wyrick, Jonas Rydinge, Jonathan L. Foret, Jonathan M. Gross, Jonathan P. Keeve, Joost Meijer, Joris J.G. Scheepers, Joseph Baele, Joseph O'Neil, Joseph R. Cass, Joseph R. Hsu, Jules Dumais, Julia Lee, Julie A. Switzer, Julie Agel, Justin E. Richards, Justin W. Langan, Kahn Turckan, Kaili Pecorella, Kamal Rai, Kamran Aurang, Karl Shively, Karlijn van Wessem, Karyn Moon, Kate Eke, Katie Erwin, Katrine Milner, Kees Jan Ponsen, Kelli Mills, Kelly Apostle, Kelly Johnston, Kelly Trask, Kent Strohecker, Kenya Stringfellow, Kevin K. Kruse, Kevin Tetsworth, Khalis Mitchell, Kieran Browner, Kim Hemlock, Kimberly Carcary, Knut Jørgen Haug, Krista Noble, Kristin Robbins, Krystal Payton, Kyle J. Jeray, L. Joseph Rubino, Lauren A. Nastoff, Lauren C. Leffler, Laurents P.S. Stassen, Lawrence K. O'Malley, Lawrence M. Specht, Lehana Thabane, Leo M.G. Geeraedts, Leslie E. Shell, Linda K. Anderson, Linda S. Eickhoff, Lindsey Lyle, Lindsey Pilling, Lisa Buckingham, Lisa K. Cannada, Lisa M. Wild, Liz Dulaney-Cripe, Lodewijk M.S.J. Poelhekke, Lonneke Govaert, Lu Ton, Lucksy Kottam, Luke P.H. Leenen, Lydia Clipper, Lyle T. Jackson, Lynne Hampton, Maarten C. de Waal Malefijt, Maarten P. Simons, Maarten van der Elst, Maarten W.G.A. Bronkhorst, Mahesh Bhatia, Marc Swiontkowski, Margaret J. Lobo, Marilyn Swinton, Marinis Pirpiris, Marius Molund, Mark Gichuru, Mark Glazebrook, Mark Harrison, Mark Jenkins, Mark MacLeod, Mark R. de Vries, Mark S. Butler, Markku Nousiainen, Martijne van 't Riet, Martin C. Tynan, Martin Campo, Martin G. Eversdijk, Martin J. Heetveld, Martin Richardson, Mary Breslin, Mary Fan, Matt Edison, Matthew Napierala, Matthias Knobe, Matthias Russ, Mauri Zomar, Maurits de Brauw, Max Esser, Meghan Hurley, Melissa E. Peters, Melissa Lorenzo, Mengnai Li, Michael Archdeacon, Michael Biddulph, Michael Charlton, Michael D. McDonald, Michael D. McKee, Michael Dunbar, Michael E. Torchia, Michael Gross, Michael Hewitt, Michael Holt, Michael J. Prayson, Michael J.R. Edwards, Michael L. Beckish, Michael L. Brennan, Michael P. Dohm, Michael S.H. Kain, Michelle Vogt, Michelle Yu, Michiel H.J. Verhofstad, Michiel J.M. Segers, Michiel P.C. Siroen, Mike Reed, Milena R. Vicente, Milko M.M. Bruijninckx, Mittal Trivedi, Mohit Bhandari, Molly M. Moore, Monica Kunz, Morten Smedsrud, Naveen Palla, Neeraj Jain, Nico J.M. Out, Nicole Simunovic, Niels W.L. Schep, Oliver Müller, Onno R. Guicherit, Oscar J.F. Van Waes, Otis Wang, Pascal G. Doornebosch, Patricia Seuffert, Patrick J. Hesketh, Patrick Weinrauch, Paul Duffy, Paul Keller, Paul M. Lafferty, Paul Pincus, Paul Tornetta, Paul Zalzal, Paula McKay, Peter A. Cole, Peter D. de Rooij, Peter Hull, Peter M.N.Y.M. Go, Peter Patka, Peter Siska, Peter Weingarten, Philip Kregor, Philip Stahel, Philip Stull, Philippe Wittich, Piet A.R. de Rijcke, Pim Oprel, PJ Devereaux, Qi Zhou, R. Lee Murphy, Rachel Alosky, Rachel Clarkson, Raely Moon, Rajanikanth Logishetty, Rajesh Nanda, Raymond J. Sullivan, Rebecca G. Snider, Richard E. Buckley, Richard Iorio, Richard J Farrugia, Richard Jenkinson, Richard Laughlin, Richard P.R. Groenendijk, Richard W. Gurich, Ripley Worman, Rob Silvis, Robert Haverlag, Robert J. Teasdall, Robert Korley, Robert McCormack, Robert Probe, Robert V. Cantu, Roger B. Huff, Rogier K.J. Simmermacher, Rolf Peters, Roman Pfeifer, Ronald Liem, Ronald N. Wessel, Ronald Verhagen, Ronald Vuylsteke, Ross Leighton, Ross McKercher, Rudolf W. Poolman, Russell Miller, Ryan Bicknell, Ryan Finnan, Ryan M. Khan, Samir Mehta, Sandy Vang, Sanjay Singh, Sanjeev Anand, Sarah A. Anderson, Sarah A. Dawson, Scott B. Marston, Scott E. Porter, Scott T. Watson, Sebastiaan Festen, Shane Lieberman, Shannon Puloski, Shea A. Bielby, Sheila Sprague, Shelley Hess, Shelley MacDonald, Simone Evans, Sofia Bzovsky, Sondre Hasselund, Sophie Lewis, Stein Ugland, Stephanie Caminiti, Stephanie L. Tanner, Stephanie M. Zielinski, Stephanie Shepard, Stephen A. Sems, Stephen D. Walter, Stephen Doig, Stephen H. Finley, Stephen Kates, Stephen Lindenbaum, Stephen P. Kingwell, Steve Csongvay, Steve Papp, Steven E. Buijk, Steven J. Rhemrev, Steven M. Hollenbeck, Steven M. van Gaalen, Steven Yang, Stuart Weinerman, null Subash, Sue Lambert, Susan Liew, Sven A.G. Meylaerts, Taco J. Blokhuis, Tammo S. de Vries Reilingh, Tarjei Lona, Taryn Scott, Teresa K. Swenson, Terrence J. Endres, Terry Axelrod, Teun van Egmond, Thomas B. Pace, Thomas Kibsgård, Thomas M. Schaller, Thuan V. Ly, Timothy J. Miller, Timothy Weber, Toan Le, Todd M. Oliver, Tom M. Karsten, Tor Borch, Tor Magne Hoseth, Tor Nicolaisen, Torben Ianssen, Tori Rutherford, Tracy Nanney, Trevor Gervais, Trevor Stone, Tyson Schrickel, Tyson Scrabeck, Utsav Ganguly, V. Naumetz, Valda Frizzell, Veronica Wadey, Vicki Jones, Victoria Avram, Vimlesh Mishra, Vineet Yadav, Vinod Arora, Vivek Tyagi, Vivian Borsella, W. Jaap Willems, W.H. Hoffman, Wade T. Gofton, Wesley G. Lackey, Wesley Ghent, William Obremskey, William Oxner, William W. Cross, Yvonne M. Murtha, Zoe Murdoch, and Surgery

Subjects
Male, Bone Screws, Avascular necrosis, Kaplan-Meier Estimate, law.invention, Fracture Fixation, Internal, 0302 clinical medicine, Randomized controlled trial, Femur Head Necrosis, law, Fracture Fixation, Fracture fixation, Medicine and Health Sciences, 80 and over, Single-Blind Method, 030212 general & internal medicine, Non-U.S. Gov't, Aged, 80 and over, Fracture Healing, 030222 orthopedics, Hip fracture, Research Support, Non-U.S. Gov't, Hazard ratio, General Medicine, Equipment Design, Femur Head Necrosis/etiology, 3. Good health, Pulmonary embolism, Multicenter Study, Treatment Outcome, Randomized Controlled Trial, Fracture Fixation, Internal/adverse effects, Female, Reoperation, musculoskeletal diseases, medicine.medical_specialty, Femoral Neck Fractures/surgery, Internal/adverse effects, Bone healing, Research Support, N.I.H, 03 medical and health sciences, Research Support, N.I.H., Extramural, medicine, Journal Article, Humans, Adverse effect, Aged, business.industry, Extramural, medicine.disease, Femoral Neck Fractures, Surgery, Reconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10], Reoperation/statistics & numerical data, Quality of Life, business
Abstract

© 2017 Elsevier Ltd Background Reoperation rates are high after surgery for hip fractures. We investigated the effect of a sliding hip screw versus cancellous screws on the risk of reoperation and other key outcomes. Methods For this international, multicentre, allocation concealed randomised controlled trial, we enrolled patients aged 50 years or older with a low-energy hip fracture requiring fracture fixation from 81 clinical centres in eight countries. Patients were assigned by minimisation with a centralised computer system to receive a single large-diameter screw with a side-plate (sliding hip screw) or the present standard of care, multiple small-diameter cancellous screws. Surgeons and patients were not blinded but the data analyst, while doing the analyses, remained blinded to treatment groups. The primary outcome was hip reoperation within 24 months after initial surgery to promote fracture healing, relieve pain, treat infection, or improve function. Analyses followed the intention-to-treat principle. This study was registered with ClinicalTrials.gov, number NCT00761813. Findings Between March 3, 2008, and March 31, 2014, we randomly assigned 1108 patients to receive a sliding hip screw (n=557) or cancellous screws (n=551). Reoperations within 24 months did not differ by type of surgical fixation in those included in the primary analysis: 107 (20%) of 542 patients in the sliding hip screw group versus 117 (22%) of 537 patients in the cancellous screws group (hazard ratio [HR] 0·83, 95% CI 0·63–1·09; p=0·18). Avascular necrosis was more common in the sliding hip screw group than in the cancellous screws group (50 patients [9%] vs 28 patients [5%]; HR 1·91, 1·06–3·44; p=0·0319). However, no significant difference was found between the number of medically related adverse events between groups (p=0·82; appendix); these events included pulmonary embolism (two patients [

Published
2017

6. Lower Extremity Fracture Reduction: Tips, Tricks, and Techniques So That You Leave the Operating Room Satisfied

Author

Hassan R, Mir, Christina L, Boulton, George V, Russell, and Michael, Archdeacon

Subjects
Patient Outcome Assessment, Radiography, Fractures, Bone, Intraoperative Care, Lower Extremity, Fracture Fixation, Patient Selection, Humans, Orthopedic Fixation Devices
Abstract

It can be challenging for surgeons to obtain proper alignment and to create stable constructs for the maintenance of many lower extremity fractures until union is achieved. Whether lower extremity fractures are treated with plates and screws or intramedullary nails, there are numerous pearls that may help surgeons deal with these difficult injuries. Various intraoperative techniques can be used for lower extremity fracture reduction and stabilization. The use of several reduction tools, tips, and tricks may facilitate the care of lower extremity fractures and, subsequently, improve patient outcomes.

Published
2016

7. Incidence, Risk Factors, and Outcome Trends of Acute Kidney Injury in Elective Total Hip and Knee Arthroplasty

Author

Girish N, Nadkarni, Achint A, Patel, Yuri, Ahuja, Narender, Annapureddy, Shiv Kumar, Agarwal, Priya K, Simoes, Ioannis, Konstantinidis, Sunil, Kamat, Michael, Archdeacon, and Charuhas V, Thakar

Subjects
Adult, Male, Adolescent, Databases, Factual, Arthroplasty, Replacement, Hip, Incidence, Comorbidity, Acute Kidney Injury, Middle Aged, United States, Young Adult, Treatment Outcome, Elective Surgical Procedures, Risk Factors, Humans, Female, Arthroplasty, Replacement, Knee, Aged
Abstract

Over the past decade, there has been a marked increase in the number of primary and revision total hip and knee arthroplasties performed in the United States. Acute kidney injury (AKI) is a common complication of these procedures; however, little is known about its epidemiology in the elective arthroplasty population. We conducted a study to determine the incidence, risk factors, and outcomes of AKI after elective joint arthroplasty. Drawing on the Nationwide Inpatient Sample database, we found that the proportion of hospitalizations complicated by AKI increased rapidly from 0.5% in 2002 to 1.8% to 1.9% in 2012. Multivariate analysis revealed that the key risk factors for AKI were chronic kidney disease and the postoperative events of sepsis, acute myocardial infarction, and blood transfusion. Moreover, codiagnosis with chronic kidney disease increased the risk for AKI associated with all 3 postoperative events. After adjusting for confounders, we found an association between AKI and a significantly increased risk for in-hospital mortality and discharge to long-term facilities. AKI serves as an important quality indicator in elective hip and knee surgeries. With elective arthroplasties expected to rise, carefully planned approach to interdisciplinary perioperative care is essential to reduce both the risk and consequences of AKI.

Published
2016

8. A Prospective Functional Outcome and Motion Analysis Evaluation of the Hip Abductors After Femur Fracture and Antegrade Nailing

Author

John D. Wyrick, Mark V. Paterno, Michael Archdeacon, Kevin R. Ford, Shelley Hampton, Timothy E. Hewett, and Mary Beth Ludwig

Subjects
musculoskeletal diseases, medicine.medical_specialty, Movement, Bone healing, Bone Nails, law.invention, Intramedullary rod, law, Fracture fixation, medicine, Humans, Orthopedics and Sports Medicine, Femur, Prospective Studies, Range of Motion, Articular, Muscle, Skeletal, Prospective cohort study, Gait, Fracture Healing, Orthodontics, Femur fracture, integumentary system, business.industry, Recovery of Function, General Medicine, Biomechanical Phenomena, Fracture Fixation, Intramedullary, Surgery, body regions, Treatment Outcome, Hip Joint, Range of motion, business, Femoral Fractures
Abstract

To determine if dynamic hip abductor weakness during gait, evaluated through component measures of hip kinematics and hip kinetics, demonstrate longitudinal improvement after antegrade intramedullary nailing of femoral shaft fractures and if these improvements correlate with patient reported functional outcomes.Prospective patient protocol.University-based, level I trauma center.Eight nonconsecutive, isolated femur fracture patients.Antegrade intramedullary nailing of isolated femoral shaft fractures.Hip kinematics (hip abduction angle and ipsilateral lateral trunk lean), hip kinetics (hip abductor moment), and patient-reported functional outcome measures (Short Form-Musculoskeletal Function Assessment Survey) were assessed at 2 time points [Time1=independent ambulation without ambulatory aide, 2.0 (+/-0.6) months; Time2=approximately 6 months after injury with clinical and radiographic fracture healing, 7.2 (+/-1.5) months].After surgical fixation of a femoral shaft fracture, subjects demonstrated significant time-dependent, negative effects on gait secondary to dynamic hip abductor weakness measured in terms of hip kinematics [hip abduction angle (P=0.012) and lateral trunk lean (P=0.046)] and hip kinetics [hip abductor moment (P=0.029 at loading response; P=0.022 at terminal stance)]. A significant improvement in the dysfunction index was found between the early and late assessments (21.3+/-15.0, 6.5+/-8.9, P=0.008). At late assessment of functional outcome (22.5+/-3.7 months), a significant correlation was observed between the dysfunction index and hip kinematics (ipsilateral trunk lean) at both Time1 (R=-0.811, P=0.015) and Time2 (R=-0.713, P=0.047).After isolated femur fracture, patients treated with antegrade intramedullary nailing demonstrated a significant negative effect on hip kinematics and kinetics, and this effect was time-dependent. Early postsurgical ipsilateral trunk lean correlated with long-term functional outcome scores; therefore, excessive frontal plane movement during gait in the early postoperative stages may be indicative of a poorer self-reported longer-term functional outcome.

Published
2008

9. Reliability, Validity, and Responsiveness of the Western Ontario and McMaster Universities Osteoarthritis Index for Elderly Patients with a Femoral Neck Fracture

Author

Paul T.P.W. Burgers, Rudolf W Poolman, Theodorus MJ Van Bakel, Wim E Tuinebreijer, Stephanie M Zielinski, Mohit Bhandari, Peter Patka, Esther MM Van Lieshout, P J Devereaux, Gordon H Guyatt, Thomas A Einhorn, Lehana Thabane, Emil H Schemitsch, Kenneth J Koval, Frede Frihagen, Kevin Tetsworth, Ernesto Guerra-Farfan, Stephen D Walter, Sheila Sprague, Marilyn Swinton, Taryn Scott, Paula McKay, Kim Madden, Diane Heels-Ansdell, Lisa Buckingham, Aravin Duraikannan, Heather Silva, Martin J Heetveld, Robert D Zura, Victoria Avram, Ajay Manjoo, Dale Williams, John Antoniou, Tim Ramsay, Earl R Bogoch, Andrew Trenholm, Stephen Lyman, Madhu Mazumdar, Kevin J Bozic, Mark Luborsky, Stuart Goodman, Susan Muray, Rob Korley, Richard Buckley, Paul Duffy, Shannon Puloski, Kimberly Carcary, Melissa Lorenzo, Michael D McKee, Jeremy A Hall, Aaron Nauth, Daniel Whelan, Timothy R Daniels, James P Waddell, Henry Ahn, Milena R Vicente, Jennifer T Hidy, Melanie T MacNevin, Hans Kreder, Terry Axelrod, Richard Jenkinson, Markku Nousiainen, David Stephen, Veronica Wadey, Monica Kunz, Katrine Milner, Ria Cagaanan, Melanie MacNevin, Peter J O’Brien, Piotr A Blachut, Henry M Broekhuyse, Pierre Guy, Kelly A Lefaivre, Gerard P Slobogean, Raman Johal, Irene Leung, Chad Coles, Ross Leighton, C. Glen Richardson, Michael Biddulph, Michael Gross, Michael Dunbar, J. David Amirault, David Alexander, Catherine Coady, Mark Glazebrook, David Johnston, William Oxner, Gerald Reardon, Ivan Wong, Kelly Trask, Shelley MacDonald, Andrew Furey, Craig Stone, Minnie Parsons, Trevor Stone, Mauri Zomar, Robert McCormack, Kelly Apostle, Dory Boyer, Farhad Moola, Bertrand Perey, Darius Viskontas, Karyn Moon, Raely Moon, Yves Laflamme, Benoit Benoit, Pierre Ranger, Michel Malo, Julio Fernandes, Karine Tardif, Julie Fournier, Pascal André Vendittoli, Vincent Massé, Alain G Roy, Martin Lavigne, Daniel Lusignan, Craig Davis, Philip Stull, Stewart Weinerman, Peter Weingarten, Steven Lindenbaum, Michael Hewitt, Rebecca Danielwicz, Janell Baker, Michael Mont, Donald E Delanois, Bhaveen Kapadia, Kimona Issa, Marylou Mullen, Andrew Sems, Barb Foreman, Javad Parvizi, Tiffany Morrison, Courtland Lewis, Stephanie Caminiti, Paul Tornetta, William R Creevy, Michelle J Lespasio, Hope Carlisle, Andrew Marcantonio, Michael Kain, Lawrence Specht, John Tilzey, John Garfi, Samir Mehta, John L Esterhai, Jaimo Ahn, Derek Donegan, Annamarie Horan, Kelly McGinnis, James Roberson, Thomas Bradbury, Greg Erens, Kyle Webb, Brian Mullis, Karl Shively, Andrew Parr, Janos Ertl, Ripley Worman, Mark Webster, Judd Cummings, Valda Frizzell, Molly Moore, Clifford B Jones, James R Ringler, Debra L Sietsema, Jane E Walker, Enes Kanlic, Amr Abdelgawad, Juan Shunia, Charles DePaolo, Susan Sutherland, Rachel Alosky, Robert Zura, Maria Manson, Gregg Strathy, Kathleen Peter, Paul Johnson, Meaghan Morton, James Shaer, Tyson Schrickel, Barbara Hileman, Marina Hanes, Elisha Chance, E. Matthew Heinrich, David Dodgin, Michele LaBadie, David Zamorano, Martin Tynan, Ran Schwarzkopf, John A Scolaro, Ranjan Gupta, Samuel Bederman, Nitin Bhatia, Bang Hoang, Douglas Kiester, Neil Jones, Gregory Rafijah, Damon Alavekios, Jason Lee, Akshay Mehta, Steven Schroder, Tom Chao, Vincent Colin, Phuc (Phil) Dang, Stephen Keun Heng, Gregory Lopez, Samuel Galle, Sohrab Pahlavan, Duy L Phan, Minal Tapadia, Christopher Bui, Nickul Jain, Tyler Moore, Nathan Moroski, Deeba Pourmand, Erik N Kubiak, Jeremy Gililland, David Rothberg, Christopher Peters, Christopher Pelt, Ami R Stuart, Kirby Corbey, Franklin D Shuler, James Day, Tigran Garabekyan, Felix Cheung, Ali Oliashirazi, Jonathon Salava, Linda Morgan, Timothy Wilson-Byrne, Mary Beth Cordle, Leon H.G.J. Elmans, Joost A.A.M. van den Hout, Adrianus JP Joosten, Ad FA van Beurden, Stefan BT Bolder, Denise Eygendaal, Adrianus F.C.M. Moonen, Rutger CI van Geenen, Eric A Hoebink, Robert Wagenmakers, Wouter van Helden, Hans-Peter W van Jonbergen, Herbert Roerdink, Joost M Reuver, Alexander FW Barnaart, Elvira R Flikweert, Rover Krips, J. Bernard Mullers, Hans Schüller, Mark LM Falke, Frans J Kurek, Adrianus CH Slingerland, Jan P van Dijk, Wouter H van Helden, Hugo W Bolhuis, Pieter HJ Bullens, Mike Hogervorst, Karin E de Kroon, Rob H Jansen, Ferry Steenstra, Eric EJ Raven, W. Peter J Fontijne, Saskia C Wiersma, Bastiaan Boetes, Edgar JT ten Holder, Huub JL van der Heide, Jochem Nagels, Enrike H.M.J. van der Linden-van der Zwaag, Stefan B Keizer, Jan-Willem A Swen, Peter HC den Hollander, Bregje JW Thomassen, Willem Jan Kleyn Molekamp, Frank R.A.J. de Meulemeester, Arthur EB Kleipool, Robert Haverlag, Maarten P Simons, Eduard L.A.R. Mutsaerts, Rob Kooijman, Roelf R Postema, René J.T.M. Bleker, Harald IH Lampe, Lein Schuman, John Cheung, Frank van Bommel, W. Paul Winia, Daniel Haverkamp, Harm van der Vis, Peter A Nolte, Michel PJ van den Bekerom, Tjitte de Jong, Arthur van Noort, Diederik A Vergroesen, Bernard G Schutte, Harm M van der Vis, Lijkele Beimers, Jasper de Vries, Arthur W Zurcher, G.H. Rob Albers, Maarten Rademakers, Stefan Breugem, Ibo van der Haven, Pieter Jan Damen, Gythe H Bulstra, Martin M Campo, Mathijs P Somford, Daniël Haverkamp, Susan Liew, Harvinder Bedi, Ashley Carr, Andrew Chia, Steve Csongvay, Craig Donohue, Stephen Doig, Elton Edwards, Max Esser, Richard Freeman, Andrew Gong, Doug Li, Russell Miller, Lu Ton, Otis Wang, Ian Young, Adam Dowrick, Zoe Murdoch, Claire Sage, Richard Page, David Bainbridge, Richard Angliss, Ben Miller, Andrew Thomson, Graeme Brown, Simon Williams, Kevin Eng, David Bowyer, John Skelley, Chatar Goyal, Sally Beattie, Enrique Guerado, Encarnacion Cruz, Juan Ramon Cano, Miguel Angel Froufe, Lluis Marull Serra, Samer Al-dirra, Cristina Martinez, Francisco José Tarazona Santabalbina, Jordi Teixidor Serra, Jordi Tomas Hernandez, Marc Aguilar Garcia, Vicente Molero Garcia, Sergi Barrera, Miriam Garrido, Lars Nordsletten, John Clarke-Jenssen, Geir Hjorthaug, Anne Christine Brekke, Elise Berg Vesterhus, Ingunn Skaugrud, Pradeep Tripathi, Sandesh Katiyar, Preksha Shukla, Marc Swiontkowski, Gordon Guyatt, Kyle Jeray, Stephen Walter, Helena Viveiros, Victoria Truong, Kaitlin Koo, Qi Zhou, Deborah Maddock, Nicole Simunovic, Julie Agel, Amar Rangan, Birgit C Hanusch, Lucksy Kottam, Rachel Clarkson, Gregory J Della Rocca, Gerard Slobogean, Jeffrey Katz, Brenda Gillespie, Gail A Greendale, Curtis Hartman, Craig Rubin, James Waddell, H. Michael Lemke, Amber Oatt, Richard E Buckley, Robert Korley, Kelly Johnston, James Powell, David Sanders, Abdel Lawendy, Christina Tieszer, John Murnaghan, Diane Nam, Albert Yee, Daniel B Whelan, Lisa M Wild, Ryan M Khan, Cathy Coady, David Amirault, Glen Richardson, Gwen Dobbin, Ryan Bicknell, Jeff Yach, Davide Bardana, Gavin Wood, Mark Harrison, David Yen, Sue Lambert, Fiona Howells, Angela Ward, Paul Zalzal, Heather Brien, V Naumetz, Brad Weening, Eugene K Wai, Steve Papp, Wade T Gofton, Stephen P Kingwell, Garth Johnson, Joseph O’Neil, Darren M Roffey, Vivian Borsella, Todd M Oliver, Vicki Jones, Terrence J Endres, Samuel G Agnew, Kyle J Jeray, J. Scott Broderick, David R Goetz, Thomas B Pace, Thomas M Schaller, Scott E Porter, Stephanie L Tanner, Rebecca G Snider, Lauren A Nastoff, Shea A Bielby, Julie A Switzer, Peter A Cole, Sarah A Anderson, Paul M Lafferty, Mengnai Li, Thuan V Ly, Scott B Marston, Amy L Foley, Sandy Vang, David M Wright, Andrew J Marcantonio, Michael SH Kain, Richard Iorio, Lawrence M Specht, John F Tilzey, Margaret J Lobo, John S Garfi, Heather A Vallier, Andrea Dolenc, Chalitha Robinson, Michael J Prayson, Richard Laughlin, L. Joseph Rubino, Jedediah May, Geoffrey Ryan Rieser, Liz Dulaney-Cripe, Chris Gayton, John T Gorczyca, Jonathan M Gross, Catherine A Humphrey, Stephen Kates, Krista Noble, Allison W McIntyre, Kaili Pecorella, Craig A Davis, Stephen Lindenbaum, John Schwappach, Janell K Baker, Tori Rutherford, Heike Newman, Shane Lieberman, Erin Finn, Kristin Robbins, Meghan Hurley, Lindsey Lyle, Khalis Mitchell, Kieran Browner, Erica Whatley, Krystal Payton, Christina Reeves, Lisa K Cannada, David Karges, Leslie Hill, John Esterhai, Annamarie D Horan, Christine A Kaminski, Brynn N Kowalski, Jonathan P Keeve, Christopher G Anderson, Michael D McDonald, Jodi M Hoffman, Ivan Tarkin, Peter Siska, Gary Gruen, Andrew Evans, Dana J Farrell, James Irrgang, Arlene Luther, William W Cross, Joseph R Cass, Stephen A Sems, Michael E Torchia, Tyson Scrabeck, Mark Jenkins, Jules Dumais, Amanda W Romero, Carlos A Sagebien, Mark S Butler, James T Monica, Patricia Seuffert, Joseph R Hsu, James Ficke, Michael Charlton, Matthew Napierala, Mary Fan, Chadi Tannoury, Michael Archdeacon, Ryan Finnan, Toan Le, John Wyrick, Shelley Hess, Michael L Brennan, Robert Probe, Evelyn Kile, Kelli Mills, Lydia Clipper, Michelle Yu, Katie Erwin, Daniel Horwitz, Kent Strohecker, Teresa K Swenson, Andrew H Schmidt, Jerald R Westberg, Kamran Aurang, Gary Zohman, Brett Peterson, Roger B Huff, Joseph Baele, Timothy Weber, Matt Edison, Jessica McBeth, Janos P Ertl, J. Andrew Parr, Molly M Moore, Erin Tobias, Emily Thomas, Charles J DePaolo, Leslie E Shell, Lynne Hampton, Stephanie Shepard, Tracy Nanney, Claudine Cuento, Robert V Cantu, Eric R Henderson, Linda S Eickhoff, E. Mark Hammerberg, Philip Stahel, David Hak, Cyril Mauffrey, Douglas Gibula, Hannah Gissel, Corey Henderson, David P Zamorano, Martin C Tynan, Deanna Lawson, Brett D Crist, Yvonne M Murtha, Linda K Anderson, Colleen Linehan, Lindsey Pilling, Courtland G Lewis, Raymond J Sullivan, Elizabeth Roper, William Obremskey, Philip Kregor, Justin E Richards, Kenya Stringfellow, Michael P Dohm, Abby Zellar, Michiel JM Segers, Jacco AC Zijl, Bart Verhoeven, Anke B Smits, Jean Paul PM de Vries, Bram Fioole, Henk van der Hoeven, Evert BM Theunissen, Tammo S de Vries Reilingh, Lonneke Govaert, Philippe Wittich, Maurits de Brauw, Jan Wille, Peter M.N.Y.M. Go, Ewan D Ritchie, Ronald N Wessel, Eric R Hammacher, Gijs A Visser, Heyn Stockmann, Rob Silvis, Jaap P Snellen, Bram Rijbroek, Joris JG Scheepers, Erik GJ Vermeulen, Michiel PC Siroen, Ronald Vuylsteke, Hans LF Brom, Herman Rijna, Piet AR de Rijcke, Cees L Koppert, Steven E Buijk, Richard PR Groenendijk, Imro Dawson, Geert WM Tetteroo, Milko MM Bruijninckx, Pascal G Doornebosch, Eelco JR de Graaf, Maarten van der Elst, Carmen C van der Pol, Martijne van’t Riet, Tom M Karsten, Mark R de Vries, Laurents PS Stassen, Niels WL Schep, G Ben Schmidt, W H Hoffman, Frank H.W.M. van der Heijden, W. Jaap Willems, Cor P van der Hart, Kahn Turckan, Sebastiaan Festen, Frank de Nies, Nico JM Out, Jan Bosma, Albert van Kampen, Jan Biert, Arie B van Vugt, Michael JR Edwards, Taco J Blokhuis, Jan Paul M Frölke, Leo MG Geeraedts, Jean WM Gardeniers, Edward T.C.H. Tan, Lodewijk M.S.J. Poelhekke, Maarten C de Waal Malefijt, Bart Schreurs, Gert R Roukema, Hong A Josaputra, Paul Keller, Peter D de Rooij, Hans Kuiken, Han Boxma, Berry I Cleffken, Ronald Liem, Steven J Rhemrev, Coks HR Bosman, Alexander de Mol van Otterloo, Jochem Hoogendoorn, Alexander C de Vries, Sven AG Meylaerts, Michiel HJ Verhofstad, Joost Meijer, Teun van Egmond, Igor van der Brand, Martin G Eversdijk, Rolf Peters, Dennis Den Hartog, Oscar JF Van Waes, Pim Oprel, Martin Campo, Ronald Verhagen, G.H. Robert Albers, Rogier KJ Simmermacher, Jeroen van Mulken, Karlijn van Wessem, Steven M van Gaalen, Luke PH Leenen, Maarten W.G.A. Bronkhorst, Onno R Guicherit, J. Carel Goslings, Kees Jan Ponsen, Mahesh Bhatia, Vinod Arora, Vivek Tyagi, Ajay Gupta, Neeraj Jain, Farah Khan, Ateet Sharma, Amir Sanghavi, Mittal Trivedi, Anil Rai, null Subash, Kamal Rai, Vineet Yadav, Sanjay Singh, Amal Shankar Prasad, Vimlesh Mishra, D C Sundaresh, Angshuman Khanna, Joe Joseph Cherian, Davy J Olakkengil, Gaurav Sharma, Akhil Dadi, Naveen Palla, Utsav Ganguly, B. Sachidananda Rai, Janakiraman Rajakumar, Peter Hull, Sophie Lewis, Simone Evans, Rajesh Nanda, Rajanikanth Logishetty, Sanjeev Anand, Carol Bowler, Andrew Jennings, Graham Chuter, Glynis Rose, Gillian Horner, Callum Clark, Kate Eke, Mike Reed, Chris Herriott, Christine Dobb, Hamish Curry, Greg Etherington, Arvind Jain, Ash Moaveni, Matthias Russ, Geoff Donald, Patrick Weinrauch, Paul Pincus, Steven Yang, Brett Halliday, Trevor Gervais, Michael Holt, Annette Flynn, Marinis Pirpiris, David Love, Andrew Bucknill, Richard J Farrugia, Torben Ianssen, Asgeir Amundsen, Jan Egil Brattgjerd, Tor Borch, Berthe Bøe, Bernhard Flatøy, Sondre Hasselund, Knut Jørgen Haug, Kim Hemlock, Tor Magne Hoseth, Geir Jomaas, Thomas Kibsgård, Tarjei Lona, Gilbert Moatshe, Oliver Müller, Marius Molund, Tor Nicolaisen, Fredrik Nilsen, Jonas Rydinge, Morten Smedsrud, Are Stødle, Axel Trommer, Stein Ugland, Anders Karlsten, Guri Ekås, Hans-Christoph Pape, Matthias Knobe, Roman Pfeifer, Orthopedic Surgery and Sports Medicine, Graduate School, Other departments, Surgery, Other Research, Amsterdam Movement Sciences, Cardiothoracic Surgery, and Emergency Medicine

Subjects
Male, medicine.medical_specialty, WOMAC, Abstracting and Indexing, Osteoarthritis, Cronbach's alpha, Surveys and Questionnaires, medicine, Humans, Orthopedics and Sports Medicine, Clinical significance, Femoral neck, Aged, 80 and over, Ontario, business.industry, Reproducibility of Results, Construct validity, General Medicine, medicine.disease, RELIABILITY VALIDITY, Femoral Neck Fractures, Reconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10], Clinical trial, Reconstructive and regenerative medicine Radboud Institute for Molecular Life Sciences [Radboudumc 10], medicine.anatomical_structure, Physical therapy, Female, Surgery, business
Abstract

Item does not contain fulltext BACKGROUND: The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) has been extensively evaluated in groups of patients with osteoarthritis, yet not in patients with a femoral neck fracture. This study aimed to determine the reliability, construct validity, and responsiveness of the WOMAC compared with the Short Form-12 (SF-12) and the EuroQol 5D (EQ-5D) questionnaires for the assessment of elderly patients with a femoral neck fracture. METHODS: Reliability was tested by assessing the Cronbach alpha. Construct validity was determined with the Pearson correlation coefficient. Change scores were calculated from ten weeks to twelve months of follow-up. Standardized response means and floor and ceiling effects were determined. Analyses were performed to compare the results for patients less than eighty years old with those for patients eighty years of age or older. RESULTS: The mean WOMAC total score was 89 points before the fracture in the younger patients and increased from 70 points at ten weeks to 81 points at two years postoperatively. In the older age group, these scores were 86, 75, and 78 points. The mean WOMAC pain scores before the fracture and at ten weeks and two years postoperatively were 92, 76, and 87 points, respectively, in the younger age group and 92, 84, and 93 points in the older age group. Function scores were 89, 68, and 79 points for the younger age group and 84, 71, and 73 points for the older age group. The Cronbach alpha for pain, stiffness, function, and the total scale ranged from 0.83 to 0.98 for the younger age group and from 0.79 to 0.97 for the older age group. Construct validity was good, with 82% and 79% of predefined hypotheses confirmed in the younger and older age groups, respectively. Responsiveness was moderate. No floor effects were found. Moderate to large ceiling effects were found for pain and stiffness scales at ten weeks and twelve months in younger patients (18% to 36%) and in the older age group (38% to 53%). CONCLUSIONS: The WOMAC showed good reliability, construct validity, and responsiveness in both age groups of elderly patients with a femoral neck fracture who had been physically and mentally fit before the fracture. The instrument is suitable for use in future clinical studies in these populations. CLINICAL RELEVANCE: The results are based on two clinical trials. The questionnaires used concern pure, clinically relevant issues (ability to walk, climb stairs, etc.). Moreover, the results can be used for future research comparing clinical outcomes (or treatments) for populations with a femoral neck fracture.

Published
2015

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