The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC): a review of its utility and measurement properties

McConnell, Sara; Kolopack, Pamela; Davis, Aileen M.

doi:10.1002/1529-0131(200110)45:5<453::aid-art365>3.0.co;2-w

Cited by 841 publications

(619 citation statements)

References 42 publications

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“…The 24‐item Western Ontario and McMaster Universities Arthritis Index (WOMAC) assesses pain, disability, and joint stiffness in patients with hip and knee OA 15 and has proven valid, reliable, and responsive to OA outcomes 15, 16. However, in addition to being lengthy, it requires a licensing fee to use, potentially limiting broad implementation.…”

Section: Resultsmentioning

confidence: 99%

Defining an International Standard Set of Outcome Measures for Patients With Hip or Knee Osteoarthritis: Consensus of the International Consortium for Health Outcomes Measurement Hip and Knee Osteoarthritis Working Group

Rolfson

Wissig²,

Maasakkers³

et al. 2016

Arthritis Care & Research

126

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ObjectiveTo define a minimum Standard Set of outcome measures and case‐mix factors for monitoring, comparing, and improving health care for patients with clinically diagnosed hip or knee osteoarthritis (OA), with a focus on defining the outcomes that matter most to patients.MethodsAn international working group of patients, arthroplasty register experts, orthopedic surgeons, primary care physicians, rheumatologists, and physiotherapists representing 10 countries was assembled to review existing literature and practices for assessing outcomes of pharmacologic and nonpharmacologic OA therapies, including surgery. A series of 8 teleconferences, incorporating a modified Delphi process, were held to reach consensus.ResultsThe working group reached consensus on a concise set of outcome measures to evaluate patients’ joint pain, physical functioning, health‐related quality of life, work status, mortality, reoperations, readmissions, and overall satisfaction with treatment result. To support analysis of these outcome measures, pertinent baseline characteristics and risk factor metrics were defined. Annual outcome measurement is recommended for all patients.ConclusionWe have defined a Standard Set of outcome measures for monitoring the care of people with clinically diagnosed hip or knee OA that is appropriate for use across all treatment and care settings. We believe this Standard Set provides meaningful, comparable, and easy to interpret measures ready to implement in clinics and/or registries globally. We view this set as an initial step that, when combined with cost data, will facilitate value‐based health care improvements in the treatment of hip and knee OA.

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Section: Resultsmentioning

confidence: 99%

Defining an International Standard Set of Outcome Measures for Patients With Hip or Knee Osteoarthritis: Consensus of the International Consortium for Health Outcomes Measurement Hip and Knee Osteoarthritis Working Group

Rolfson

Wissig²,

Maasakkers³

et al. 2016

Arthritis Care & Research

126

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“…Patients completed the Likert Version 3.1 of the WOMAC Pain and Function questionnaires [39]. The WOMAC has been studied extensively and is reliable and valid for quantifying the extent of pain and disability in patients undergoing knee arthroplasty [39].…”

Section: Methodsmentioning

confidence: 99%

Preoperative Pain Catastrophizing Predicts Pain Outcome after Knee Arthroplasty

Riddle

Wade

Jiranek

et al. 2010

Clinical Orthopaedics &Amp; Related Research

347

296

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Psychologic status is associated with poor outcome after knee arthroplasty yet little is known about which specific psychologic disorders or pain-related beliefs contribute to poor outcome. To enhance the therapeutic effect of a psychologic intervention, the specific disorders or pain-related beliefs that contributed to poor outcome should be identified. We therefore determined whether specific psychologic disorders (ie, depression, generalized anxiety disorder, panic disorder) or health-related beliefs

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“…Its validity and reliability have been extensively tested (21). The total score is calculated by summing each subscale (pain, stiffness, and physical function).…”

Section: Methodsmentioning

confidence: 99%

Severely compromised quality of life in women and those of lower socioeconomic status waiting for joint replacement surgery

Ackerman¹,

Graves²,

Wicks³

et al. 2005

Arthritis & Rheumatism

125

101

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Objective. To determine health-related quality of life (HRQOL), psychological distress, physical function, and self efficacy in persons waiting for lower-limb joint replacement surgery. Methods. A total of 214 patients on a waiting list for unilateral primary total knee or hip replacement at a large Australian public teaching hospital completed questionnaires after entry to the list. HRQOL and psychological distress were compared with available population norms. Results. Average HRQOL was extremely poor (mean ؎ SD 0.39 ؎ 0.24) and much lower (>2 SD) than the population norm. Near death-equivalent HRQOL or worse than death-equivalent HRQOL were reported by 15% of participants. High or very high psychological distress was up to 5 times more prevalent in the waiting list sample (relative risk 5.4 for participants ages 75 years and older; 95% confidence interval 3.3, 9.0). Women had significantly lower HRQOL, self efficacy, and physical function scores than men. After adjusting for age and sex, significant socioeconomic disparities were also found. Participants who received the lowest income had the poorest HRQOL; those with the least education or the lowest income had the highest psychological distress. Low self efficacy was moderately associated with poor HRQOL (r ‫؍‬ 0.49, P < 0.001) and more strongly associated with high psychological distress (r ‫؍‬ ؊0.55, P < 0.001). Conclusion. Patients waiting for joint replacement have very poor HRQOL and high psychological distress, especially women and those from lower socioeconomic backgrounds. Lengthy waiting lists mean patients can experience extended and potentially avoidable morbidity. Interventions to address psychological distress and self efficacy could reduce this burden and should target women and lower socioeconomic groups. KEY WORDS.Health-related quality of life; Joint replacement; Socioeconomic status.

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The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC): a review of its utility and measurement properties

Cited by 841 publications

References 42 publications

Defining an International Standard Set of Outcome Measures for Patients With Hip or Knee Osteoarthritis: Consensus of the International Consortium for Health Outcomes Measurement Hip and Knee Osteoarthritis Working Group

Defining an International Standard Set of Outcome Measures for Patients With Hip or Knee Osteoarthritis: Consensus of the International Consortium for Health Outcomes Measurement Hip and Knee Osteoarthritis Working Group

Preoperative Pain Catastrophizing Predicts Pain Outcome after Knee Arthroplasty

Severely compromised quality of life in women and those of lower socioeconomic status waiting for joint replacement surgery

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