頁籤選單縮合
題 名 | Neck-Cup Impingement in Bipolar Endoprosthesis Cause Osteolysis Around the Acetabulum |
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作 者 | 盧永昌; 黃俊雄; 賴建宏; | 書刊名 | 中華民國骨科醫學會雜誌 |
卷 期 | 15:3 1998.09[民87.09] |
頁 次 | 頁98-104 |
分類號 | 416.61 |
關鍵詞 | Bipolar; Impaction; Notch; Impingement; |
語 文 | 英文(English) |
英文摘要 | Seven cases involving ten hips with acetabular wear by cup central migration in bipolar arthroplasties were observed at six to nine years after implantation. Seven hips underwent revision to total hip arthroplasties because of excessive acetabular cartilage wear or osteolysis. Among them dislocation of the femoral head from the cup noted in one hip, breakage of the neck of femoral prosthesis in one hip, impactions of the cup on the femoral neck with notch depression in three hips, femoral stem loosening in one hip. The histologic examination of the fibrous tissue showed metal debris and polyethene particles surrounded by foreign body giant cells. The presumed mechanism of the failure is the cyclic impingement of the femoral neck on the rim of the cup leading to polyethylene particles, metal debris and subsquent acetabular wear and periprosthetic osteolysis. |
本系統中英文摘要資訊取自各篇刊載內容。