Salvage of a recurrently dislocating total hip prosthesis with use of a constrained acetabular component

被引:52
作者
Goetz, DD
Bremner, BRB
Callaghan, JJ
Capello, WN
Johnston, RC
机构
[1] Moines Orthopaed Surg, W Des Moines, IA 50266 USA
[2] Mayo Clin, Dept Orthoped Surg, Rochester, MN 55905 USA
[3] Univ Iowa Hlth Care, Dept Orthopaed Surg, Iowa City, IA 52242 USA
[4] Indiana Univ, Sch Med, Dept Orthopaed Surg, Indianapolis, IN 46202 USA
关键词
D O I
10.2106/00004623-200411000-00009
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 previously reported the results at a mean of five years following the use of a tripolar constrained acetabular component to treat recurrently dislocating total hip prostheses. In this study, we report the results after longer follow-up, with emphasis on the prevalence of implant loosening, osteolysis, and later recurrent instability. Fifty-five patients treated with a total of fifty-six constrained acetabular components because of recurrent dislocations of a total hip prosthesis (average, six dislocations; range, two to twenty dislocations) were followed for an average of 10.2 years (range, 7.0 to 13.2 years) or until death. Four (7%) of the fifty-six hips had a subsequent dislocation or failure of the device. Three femoral components (5%) and two acetabular components (4%) were revised because of aseptic loosening. One hip was revised because of osteolysis. We concluded that this constrained acetabular component provides durable protection against additional dislocations without substantial deleterious effects on component fixation. We use this device to treat recurrent dislocation when other modalities are unlikely to be effective.
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页码:2419 / 2423
页数:5
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