Test–retest reliability of the peak knee adduction moment during walking in patients with medial compartment knee osteoarthritis
- 30 July 2007
- journal article
- research article
- Published by Wiley in Arthritis Care & Research
- Vol. 57 (6), 1012-1017
- https://doi.org/10.1002/art.22899
Abstract
Objective To estimate the test–retest reliability of the peak external knee adduction moment during walking in patients with medial compartment knee osteoarthritis (OA), and to describe the interpretation of the reported values. Methods A total of 31 patients diagnosed with knee OA confined primarily to the medial compartment underwent quantitative gait analyses during 2 separate test sessions at least 24 hours apart and within 1 week. The peak knee adduction moment was calculated for each patient at each session based on the mean of 5 walking trials. Reliability was estimated using the intraclass correlation coefficient (ICC2,1) and the standard error of measurement (SEM). Results The mean difference in peak adduction moments between test sessions was 0.1% body weight × height (BW × ht; 95% confidence interval [95% CI] −0.1, 0.3). The point estimate for the ICC was 0.86 (95% CI 0.73, 0.96). The point estimate for the SEM was 0.36% BW × ht (95% CI 0.29, 0.48). Conclusion The ICC suggests that the peak knee adduction moment is appropriate for use when distinguishing among patients, for example, in studies of various interventions intended to decrease dynamic load on the knee medial compartment. The SEM illustrates the importance of considering measurement error and incorporating confidence levels when interpreting an individual patient's peak knee adduction moment value.Keywords
This publication has 47 references indexed in Scilit:
- Reliability and sensitivity to change of the OMERACT rheumatoid arthritis magnetic resonance imaging score in a multireader, longitudinal settingArthritis & Rheumatism, 2005
- The lateral view radiograph for assessment of the tibiofemoral joint space in knee osteoarthritis: Its reliability, sensitivity to change, and longitudinal validityArthritis & Rheumatism, 2005
- Knee adduction moment and development of chronic knee pain in eldersArthritis Care & Research, 2004
- Dynamic load at baseline can predict radiographic disease progression in medial compartment knee osteoarthritisAnnals Of The Rheumatic Diseases, 2002
- Interaction between active and passive knee stabilizers during level walkingJournal of Orthopaedic Research, 1991
- Measurement of lower extremity kinematics during level walkingJournal of Orthopaedic Research, 1990
- Development of criteria for the classification and reporting of osteoarthritis: Classification of osteoarthritis of the kneeArthritis & Rheumatism, 1986
- STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENTThe Lancet, 1986
- Radiological Assessment of Osteo-ArthrosisAnnals Of The Rheumatic Diseases, 1957