The Journal of Arthroplasty
Volume 27, Issue 5 , Pages 750-757.e2, May 2012

Functional Outcomes for 2 Years Comparing Hip Resurfacing and Total Hip Arthroplasty

  • The Alberta Hip Improvement Project

      Affiliations

    • Corresponding Author InformationReprint requests: James R. MacKenzie, MD, FRCSC, Alberta Bone and Joint Health Institute, Suite 400, 3280 Hospital Dr NW, Calgary, Alberta, Canada T2N 4Z6.
    • James R. MacKenzie MD, FRCSC, Gregory J. O'Connor MD, FRCSC, Deborah A. Marshall PhD, Peter D. Faris PhD, Leslie C. Dort MSc, DDS, Hoa Khong MD, MPH Robyn D. Parker, BA, BSc, Jason R. Werle, MD, FRCSC, Lauren A. Beaupre, PT, PhD, Cyril B. Frank, MD, FRCSC, on behalf of the Alberta Hip Improvement Project (HIP) Advisory Committee and the Alberta Arthroplasty Research Group (AARG).

Received 16 December 2010; accepted 6 October 2011. published online 30 January 2012.

Abstract 

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.

Keywords: hip resurfacing arthroplasty, total hip arthroplasty, outcomes

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 The Conflict of Interest statement associated with this article can be found at doi:10.1016/j.arth.2011.10.004.

 This study was supported by Smith & Nephew (unrestricted research grant), DePuy Orthopaedics, Inc (unrestricted research grant), McCaig Institute for Bone and Joint Health, Tenet Medical Inc (unrestricted research grant), and Alberta Health and Wellness.

 Supplementary material available at www.arthroplastyjournal.org.

PII: S0883-5403(11)00525-0

doi:10.1016/j.arth.2011.10.004

The Journal of Arthroplasty
Volume 27, Issue 5 , Pages 750-757.e2, May 2012

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