Measuring Functional Improvement After Total Knee Arthroplasty Requires Both Performance-Based and Patient-Report Assessments A Longitudinal Analysis of Outcomes

作者：Mizner Ryan L; Petterson Stephanie C; Clements Katie E; Zeni Joseph A Jr; Irrgang James J; Snyder Mackler Lynn^*

来源：Journal of Arthroplasty, 2011, 26(5): 728-737.

DOI：10.1016/j.arth.2010.06.004

• knee arthroplasty
• outcome measures
• self-reported function
• performance measures
• disability

The purpose was to explore the responsiveness of both patient-report and performance-based outcome measures to determine functional changes during the acute and long-term postoperative recovery after total knee arthroplasty (TKA). One hundred patients scheduled for unilateral TKA underwent testing preoperatively and at 1 and 12 months postoperatively using the Delaware Osteoarthritis Profile. All physical performance measures decreased initially after surgery then increased in the long term; however, the perceived function did not follow the same trend, and some showed an increase immediately after surgery. Patient-report measures were variable, with no to small response early, but had excellent long-term responsiveness that was twice as large as performance measures. Patient perception fails to capture the acute functional declines after TKA and may overstate the long-term functional improvement with surgery.

• 出版日期2011-8