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J Arthroplasty. 2011 Aug;26(5):728-37. doi: 10.1016/j.arth.2010.06.004. Epub 2010 Sep 20.

Measuring functional improvement after total knee arthroplasty requires both performance-based and patient-report assessments: a longitudinal analysis of outcomes.

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  • 1Department of Physical Therapy, University of Delaware, 301 McKinly Laboratory, Newark, Delaware 19716, USA.

Abstract

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.

Copyright © 2011 Elsevier Inc. All rights reserved.

PMID:
20851566
[PubMed - indexed for MEDLINE]
PMCID:
PMC3008304
Free PMC Article
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