Article

The purpose of this study was to explore the relationship between
patients' self-reported and performance-based function after total hip
arthroplasty (THA). DESIGN: Twenty-three patients (age, 61.4 +/- 8.3 yrs)
undergoing primary THA for hip osteoarthritis participated. Self-reported
function and recovery was measured using the Hip Disability and Osteoarthritis
Outcome Score activities of daily living and pain subscales. Performance-based
functional measures included the timed up and go test, the stair climbing test,
and the 6-minute walk test. Outcome measures were assessed preoperatively and
postoperatively at 1 and 6 mos. RESULTS: One month after THA, performance-based
function declined compared with baseline as follows: timed up and go test, -22.1%
+/- 25.4%; stair climbing test, -58.5% +/- 63.6%; and 6-minute walk test, -22.6%
+/- 31.7%. In contrast, self-reported function on the Hip Disability and
Osteoarthritis Outcome Score Activities of Daily Living significantly improved 1
mo after THA compared with baseline: 40.8% +/- 33.3%. One to 6 mos after THA,
there were significant improvements in timed up and go test, stair climbing test,
and 6-minute walk test, which paralleled improvements on the Hip Disability and
Osteoarthritis Outcome Score subscales, although changes were not significantly
correlated. CONCLUSION: The disparity between changes in Hip Disability and
Osteoarthritis Outcome Scores and functional performance postoperatively suggests
that patients may overestimate their functional capacity early after THA, likely
in response to pain improvements over the same time period. Therefore, outcomes
assessment after THA should include both self-report and performance-based
functional measures.

Langue : ANGLAIS