Assessing recovery and establishing prognosis following total knee arthroplasty,” Phys

Information about expected rate of change after arthroplasty is critical for making prognostic decisions related to rehabilitation. The goals of this study were: (1) to describe the pattern of change in lower-extremity functional status of patients over a 1-year period after total knee arthroplasty (TKA) and (2) to describe the effect of preoperative functional status on change over time. Subjects Eighty-four patients (44 female, 40 male) with osteoarthritis, mean age of 66 years (SD9), participated. Methods Repeated measurements for the Lower Extremity Functional Scale (LEFS) and the Six-Minute Walk Test (6MWT) were taken over a 1-year period. Data were plotted to examine the pattern of change over time. Different models of recovery were ex-plored using nonlinear mixed-effects modeling that accounted for preoperative status and gender. Result