People who undergo revision arthroplasty report more limitations but no decrease in physical activity compared with primary total hip arthroplasty: an observational study.

Question: Do people who have had revision arthroplasty report more limitations and less physical activity than those after primary total hip arthroplasty? Can degree of limitation and physical activity be predicted by revision arthroplasty, after adjustment for age, gender, and Charnley classification?

Design: Cross-sectional observational study.

Participants: 371 people after primary and 134 after revision total hip arthroplasty.

Outcome Measures: Limitations were measured using the Dutch-language version of the WOMAC questionnaire and amount and intensity of physical activity was measured using the SQUASH questionnaire.