Article

OBJECTIVE: To assess self-reported physical activity changes pre- compared to
post-operatively in patients undergoing total hip or knee arthroplasty, and to
compare this to an age- and gender-matched cohort of people who have not
undergone arthroplasty. DESIGN: Population-based prospective cohort study.
SETTING: Norfolk, United Kingdom. SUBJECTS: People who had undergone hip or knee
arthroplasty, compared to an age- and gender-matched non-arthroplasty cohort.
INTERVENTION: Primary total hip or knee arthroplasty.
MAIN MEASURES: Physical
activity, measured using the EPIC Physical Activity Questionnaire (EPAQ2).
RESULTS: A total of 400 people from the EPIC-Norfolk community cohort were
identified who had undergone hip or knee arthroplasty. In all, 767 people were
identified to form an age- and gender-matched non-arthroplasty cohort. Mean
post-operative follow-up was 43 months post-total hip and 41 months post-total
knee arthroplasty. There was a statistically significant reduction from pre- to
post-arthroplasty in the number of flights of stairs climbed weekly (hip: mean
difference (MD): 6.8; P < 0.01; knee: MD: 10.2; P < 0.01), duration of walking
(hip: MD: 1.4 hours/week; P = .02; knee: MD: 2.2 hours/week; P < 0.01) and
duration of total recreational activity (hip: MD: 1.1 hours/week; P = 0.02).
Compared to the non-arthroplasty cohort, duration of physical activity was lower
post-total hip arthroplasty (MD: 1.8 hours/week; P = 0.01).
The number of flights
of stairs climbed weekly (MD: 12.0; P < 0.01), total recreational activity (MD:
1.7 hours/week; P = 0.04)
and physical activity energy expenditure (MD: 5.7
Mets-hours/week; P = 0.05) were lower for people post-total knee arthroplasty
compared to the matched controls. CONCLUSIONS: Physical activity did not
increase, and in some instances decreased, following total hip or knee arthroplasty.

Langue : ANGLAIS