Wear and Range of Motion of Different Femoral Head Sizes

被引：55

作者：

Hammerberg, Eric Mark ^{[1
]}

Wan, Zhinian ^{[1
]}

Dastane, Manish ^{[1
]}

Dorr, Lawrence D. ^{[1
]}

机构：

[1] Hosp Good Samaritan, Arthrit Inst, Los Angeles, CA 90017 USA

来源：

JOURNAL OF ARTHROPLASTY | 2010年 / 25卷 / 06期

关键词：

wear; Durasul; range of motion; total hip; head size; TOTAL HIP-ARTHROPLASTY; CROSS-LINKED POLYETHYLENE; MOLECULAR-WEIGHT POLYETHYLENE; RADIOGRAPHIC EVALUATION; CLINICAL-PERFORMANCE; ACETABULAR CUP; REPLACEMENT; DISLOCATION; COMPONENTS; LINERS;

D O I：

10.1016/j.arth.2009.07.007

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：

100224 [整形外科学];

摘要：

Femoral head sizes greater than 32 mm are more prevalent with current total hip arthroplasty. We hypothesized that linear wear rates of Durasul highly cross-linked polyethylene would not differ with different head sizes. We also compared the range of motion of the hip. Ninety-four consecutive arthroplasties in 84 patients were studied for a mean 3.6 +/- 0.7 years. There was no statistical difference in linear wear rates and annual or total penetration rates when 28-mm and 32-mm heads were compared to 38-mm and 44-mm heads. Volumetric wear was 12.4 mm(3)/y higher with bigger heads. Range of motion did not differ. Larger femoral head sizes show no evidence of an accelerated wear pattern when used with Durasul.

引用

页码：839 / 843

页数：5

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