Close Reduction of Dislocated Total Hip with Omnifit Constrained Acetabular Component: Report of a Case

全人工髖關節置換手術造福了許多髖關節病變及股骨頸骨折之患者，但也有少部份患者在手術後發生人工關節脫臼的併發症，其中少數患者甚至發生多次脫臼的情況。此種併發症使醫師及患者深感困擾。限制型全人工髖關節可以降低此類併發症的發生率，但有極少數患者仍然發生脫臼的情況。因此，我們認爲限制型全人工髖關節並非所有復發性全人工髖關節脫臼患者的萬靈丹，並建議在採取此項手術前，應設法找出造成患者多次脫臼之原因，盡力克服，只有在所有可能造成脫臼之因素均被排除時，施行此項手術才會成功。我們報告一位女性，爲慢性陳舊性腦梗塞患者，在接受限制型全人工髖關節置換手術後，仍發生兩次脫臼的情況。在第二次脫臼時，我們嘗試以閉鎖式復位方式將其復位成功，避免了再次手術的傷害。因此，我們建議在遇到類似情況時，可考慮先以閉鎖式復位方式來治療患者。

關鍵字

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並列摘要

The poor results of surgical treatment of chronic instability after total hip arthroplasty led to the development of a constrained acetabular component. Two constrained liners are commonly used, the Omnifit (Osteonics, Allendale, NJ) and the SROM liner (Joint Medical Products, Stamford, CT). However, dislocation may still occur if the patient cannot follow up counseling to ensure proper rehabilitation and positioning compliance. We report a 75-year-old female who sustained dislocation of the right hip two times after total hip arthroplasty with the use of a constrained acetabular component. If dislocation occurs out of a constrained liner, open reduction is indicated. Since she was a medically compromised and poor surgical candidate, open reduction was deemed unsuitable. We therefore tried close reduction and obtained a successful result. Hence, we recommend close reduction as the first strategy for treating such a patient.

並列關鍵字

total hip arthroplasty ； dislocation ； constrained acetabular component

國際替代計量

Close Reduction of Dislocated Total Hip with Omnifit Constrained Acetabular Component: Report of a Case

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