Cup Size and Risk of Dislocation After Primary Total Hip Arthroplasty

被引：26
|
作者：
Peter, Robin [1 ]
Luebbeke, Anne [1 ]
Stern, Richard [1 ]
Hoffmeyer, Pierre [1 ]
机构：
[1] Univ Hosp Geneva, Div Orthopaed & Trauma Surg, CH-1211 Geneva, Switzerland
来源：
JOURNAL OF ARTHROPLASTY | 2011年 / 26卷 / 08期
关键词：
total hip dislocation; hip arthroplasty dislocation; acetabular cup size: acetabular cup diameter; total hip head size; FEMORAL-HEAD SIZE; REPLACEMENT; DIAMETER; IMPINGEMENT; REVISION; OUTCOMES; DESIGN; OBESE;
D O I：
10.1016/j.arth.2010.11.015
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 evaluated the relationship between cup diameter and dislocation risk in patients undergoing primary total hip arthroplasty (THA) with a 28-mm head. There were 50 dislocations, 28 of which occurred in 2221 (1.3%) THAs with a cup diameter smaller than 56 mm and 22 in 513 (4.3%) with a cup diameter of 56 mm or larger. Dislocation risk varied between 0.6% and 2.4% in the smaller cup group and between 4.1% and 5.2% in the larger cup group. The risk was substantially higher in the large cup group (unadjusted odds ratio, 3.5; 95% confidence interval, 2.0-6.2). Multivariable logistic regression revealed an adjusted odds ratio of 2.4 (95% confidence interval, 1.2-4.9). Patients with THA (28-mm head) had more than twice the risk of dislocation with cup size of 56 mm or higher compared to patients with smaller cups.
引用
收藏
页码：1305 / 1309
页数：5
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