Hip Resurfacing Compared to Total Hip Replacement Functional Outcomes for 2 Years 2012
Original Article:
January 30, 2012
This prospective observational study of 499 patients with hip resurfacing and
255 patients with total hip arthroplasty compared outcomes for 2 years. We used
propensity scores to identify matched cohorts of 118 patients with hip
resurfacing and 118 patients with total hip arthroplasty. We used these cohorts
to compare improvements in the Western Ontario and McMaster University (WOMAC)
osteoarthritis index and Medical Outcomes Short-Form 36 physical function
component (SF-36 PF) scores at 3 months and at 1 and 2 years postsurgery.
Both groups demonstrated significant improvements from baseline in WOMAC and
SF-36 PF. Improvements in SF-36 PF were greater for patients with hip
resurfacing than for patients with total hip arthroplasty 1 and 2 years
postsurgery; improvements in WOMAC were similar for both groups. The clinical
significance of this observation needs further investigation.