Cross-linked versus conventional polyethylene for total hip replacement A META-ANALYSIS OF RANDOMISED CONTROLLED TRIALS

被引:82
作者
Kuzyk, P. R. T. [1 ]
Saccone, M. [1 ]
Sprague, S. [1 ]
Simunovic, N. [1 ]
Bhandari, M. [1 ]
Schemitsch, E. H. [1 ]
机构
[1] St Michaels Hosp, Toronto, ON M5B 1W8, Canada
来源
JOURNAL OF BONE AND JOINT SURGERY-BRITISH VOLUME | 2011年 / 93B卷 / 05期
关键词
MOLECULAR-WEIGHT POLYETHYLENE; WEAR; ARTHROPLASTY; MACROPHAGES; CHECKLIST; LINKING;
D O I
10.1302/0301-620X.93B5.25908
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
We conducted a systematic review and meta-analysis of randomised controlled trials comparing cross-linked with conventional polyethylene liners for total hip replacement in order to determine whether these liners reduce rates of wear, radiological evidence of osteolysis and the need for revision. The MEDLINE, EMBASE and COCHRANE databases were searched from their inception to May 2010 for all trials involving the use of cross-linked polyethylene in total hip replacement. Eligibility for inclusion in the review included the random allocation of treatments, the use of cross-linked and conventional polyethylene, and radiological wear as an outcome measure. The pooled mean differences were calculated for bedding-in, linear wear rate, three-dimensional linear wear rate, volumetric wear rate and total linear wear. Pooled risk ratios were calculated for radiological osteolysis and revision hip replacement. A search of the literature identified 194 potential studies, of which 12 met the inclusion criteria. All reported a significant reduction in radiological wear for cross-linked polyethylene. The pooled mean differences for linear rate of wear, three-dimensional linear rate of wear, volumetric wear rate and total linear wear were all significantly reduced for cross-linked polyethylene. The risk ratio for radiological osteolysis was 0.40 (95% confidence interval 0.27 to 0.58; I-2 = 0%), favouring cross-linked polyethylene. The follow-up was not long enough to show a difference in the need for revision surgery.
引用
收藏
页码:593 / 600
页数:8
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