Metal-on-Metal Local Tissue Reaction Is Associated With Corrosion of the Head Taper Junction

被引：77

作者：

Fricka, Kevin B. ^{[1
]}

Ho, Henry ^{[2
]}

Peace, William J. ^{[1
]}

Engh, Charles A., Jr. ^{[1
]}

机构：

[1] Mt Vernon Hosp, Inova Ctr Joint Replacement, Alexandria, VA USA

[2] Anderson Orthopaed Res Inst, Alexandria, VA USA

来源：

JOURNAL OF ARTHROPLASTY | 2012年 / 27卷 / 08期

关键词：

total hip arthroplasty; metal-on-metal; corrosion; adverse local tissue reaction; taper junction; TOTAL HIP-ARTHROPLASTY; BEARINGS; FAILURE; HYPERSENSITIVITY; SENSITIVITY; REPLACEMENT; OSTEOLYSIS;

D O I：

10.1016/j.arth.2012.03.019

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 taper corrosion in 36-mm diameter metal-on-metal (MOM) and metal-on-polyethylene (MOP) femoral heads from a single manufacturer retrieved for various reasons. Three reviewers visually graded taper corrosion with a 5-point scale on 19 MOM heads and 14 MOP heads. The MOM group had a higher corrosion score than the MOP group (mean, 3.5 vs 1.9; P < .001). There were 8 MOM heads (42%) and only 1 MOP head (7%) that demonstrated corrosion outside of the taper zone. Metal-on-metal patients revised secondary to adverse local tissue reactions (ALTRs) had greater scores than patients without ALTRs (mean, 4.36 vs 2.38; P < .01). Adverse local tissue reactions MOM patients were also likely to have corrosion outside of the taper junction. The corrosion score increased with implantation time, and at all time intervals, the corrosion score for the MOM group was greater. Because corrosion worsens with time, we are concerned that MOM ALTR failures will increase with longer follow-up.

引用

页码：26 / 31

页数：6

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