Unipolar versus Bipolar Hemiarthroplasty for Displaced ... | 合法醫療器材資訊網

由DZWNg著作·2015·被引用8次—Considerabledifferencesofopinionexistsregardingthechoicebetweenunipolarandbipolardesigns.Themaintheoreticaladvantageofabipolaroveraunipolar ...

Introduction: Hip hemiarthoplasties are commonly performed for displaced femoral neck fractures. Considerable differences of opinion exists regarding the choice between unipolar and bipolar designs. The main theoretical advantage of a bipolar over a unipolar prosthesis is the reduction of acetabular erosion due to movement taking place within the implant rather than at the acetabular implant interface. It is thus hypothesised that bipolar prostheses lead to better long-term functional outcomes with less complications. In this study, we aimed to compare unipolar (Moores) and bipolar hemiarthroplasty looking specifically for differences in 1) pain and functional hip scores; 2) rates of acetabular erosion, component migration and revision surgery; and 3) rates of postoperative morbidity.

Materials and methods: Inclusion criteria were 1) age more than or equal to 65 years; 2) displaced femoral neck frac...