两种表面置换关节成形术植入物的比较：中期临床和影像学结果。

A comparison of two resurfacing arthroplasty implants: medium-term clinical and radiographic results.

作者信息

Nam Denis, Maher Patrick, Rebolledo Brian J, Su Edwin P

机构信息

Adult Reconstruction and Joint Replacement Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, Weill Medical College of Cornell University, 535 East 70th Street, New York, NY 10021, USA.

出版信息

Hip Int. 2012 Sep-Oct;22(5):566-73. doi: 10.5301/HIP.2012.9749.

DOI:10.5301/HIP.2012.9749

PMID:23100155

Abstract

The objective of this study was to perform a medium-term analysis comparing the clinical and radiographic outcomes of the CONSERVE® Plus (C+) and Birmingham Hip Resurfacing (BHR) arthroplasty systems. 137 hips were included in each cohort, with a mean follow-up of 60.0 ± 14.2 months and 63.3 ± 3.5 months in the C+ and BHR cohorts respectively. Latest review UCLA and HHS scores showed statistically significant improvements when compared with preoperative scores for both cohorts. UCLA and SF-12 physical component outcome scores were significantly different (p<0.01 and p = 0.04, respectively). Median serum chromium and cobalt levels were significantly increased in the BHR cohort (p = 0.001). Both cohorts demonstrated excellent Kaplan-Meier 5-year survival rates (96.9% in the C+ cohort, and 96.4% in the BHR cohort). Overall both implants appear to perform well in the medium term.

摘要

本研究的目的是进行一项中期分析，比较CONSERVE® Plus（C+）和伯明翰髋关节表面置换术（BHR）两种关节置换系统的临床和影像学结果。每个队列纳入137例髋关节，C+队列和BHR队列的平均随访时间分别为60.0±14.2个月和63.3±3.5个月。与术前评分相比，最新的UCLA和HHS评分显示两个队列均有统计学意义的改善。UCLA和SF-12身体成分结局评分有显著差异（分别为p<0.01和p = 0.04）。BHR队列的血清铬和钴水平中位数显著升高（p = 0.001）。两个队列的Kaplan-Meier 5年生存率均极佳（C+队列中为96.9%，BHR队列中为96.4%）。总体而言，两种植入物在中期似乎都表现良好。