Alberta Bone and Joint Health Institute, Calgary, Alberta, Canada.
J Arthroplasty. 2012 May;27(5):750-7.e2. doi: 10.1016/j.arth.2011.10.004. Epub 2012 Jan 28.
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.
本前瞻性观察研究纳入了 499 例髋关节表面置换术患者和 255 例全髋关节置换术患者，比较了两组患者术后 2 年的结局。我们使用倾向评分法为髋关节表面置换术和全髋关节置换术患者各匹配了 118 例患者。我们使用这些队列比较了两组患者在术后 3 个月、1 年和 2 年时的 Western Ontario and McMaster University (WOMAC) 骨关节炎指数和 Medical Outcomes Short-Form 36 生理功能成分 (SF-36 PF) 评分的改善情况。两组患者在 WOMAC 和 SF-36 PF 方面均较基线水平有显著改善。术后 1 年和 2 年，髋关节表面置换术患者的 SF-36 PF 改善程度大于全髋关节置换术患者；两组患者的 WOMAC 改善程度相似。这一观察结果的临床意义需要进一步研究。
