Physical measures predicting better outcomes in knee arthroplasty patients: a secondary analysis of the CORKA randomised controlled trial.
Weedon BD., Room J., Barker KL.
BACKGROUND: Evaluate functional and participation predictors of outcome following knee arthroplasty (KA) focusing on theInternational Classification of Functioning, Disability, and Health framework. METHODS: Secondary analysis of the CORKA randomised controlled trial, which included patients undergoing KA. The primary outcome was the Late-Life Function and Disability Instrument (LLFDI) was assessed using a linear mixed-effects model. Secondary outcomes with baseline assessments of the Physical Activity Scale for the Elderly (PASE), Figure of 8 Walk Test (F8WT), 30-Second Chair Stand Test (30CST), and single-leg stance on the operated leg (SLS) were used to predict functional and participation outcomes at 6, 12, and 24-months using multiple linear regression models. RESULTS: 621 participants were recruited (males 250, females 371), with a mean age of 70 ± 8 years. SLS significantly predicted LLFDI function across all time points (6-months 0.14, 0.06-0.22, p = 0.001, 12-months 0.18, 0.09-0.27, p