為呈現髖關節之半髖關節置換術的臨床經驗，本研究以中山醫學院附設醫院骨科自1978年1月至1994年12月共203位病患共計206手術例為樣本，分為：Austin-Moore人工股骨頭及兩極式半髖關節置換術兩組，進行病歷回顧及門診追蹤分析。實際共得Austin-Moore組93人計93例及兩極式組60人計63例，合計153人計156例進行分析。Austin-Moore組平均年齡為65.5±1.3歲，90.3％為股骨頸骨折，而兩極式組平均年齡為60.5±15.0歲，87.3％為股骨頸骨折。Austin-Moore組之手術平均時間、出血量及住院日顯著地少於兩極組。Austin-Moore組術後有較多的髖臼磨損，但脫臼或鬆脫的比率與兩極組類似。兩組均有不錯的Harris hip score滿意度，但以兩極組為佳。本研究結論為：Austin-Moore及兩極式半髖關節置換術均為有效的術式，前者可用於身體狀況不佳的老人，後者則可用於身體狀況佳或年輕人之股骨頭缺血性壞死病變。
關健詞：半髖關節置換術、Austin-Moore人工股骨頭、兩極式半髖關節人工股骨頭，臨床經驗。
To demostrate the clinical experience of hemiarthroplasty of hip at the Department of Orthopedics, Chung Shan Medical & Dental college hospital, 203 patients with 206 hemiarthroplasty of hip between January, 1978 and December, 1994 were collected & analyzed through review of medical records and clinical follow-up. Finally, there were 156 patients with 156 hemiarthroplasty included in this study and divided into two group: 93 patients with 93 hemiarthroplasty in Austin-Moore group and 60 patients with 63 hemiarthroplasty in bipolar group. For Austin-Moore group, the average age was 65.5±11.3 years and 90.3% of case were femoral neck fractures, while was 60.5±15.5 years and 87.3% in the bipolar group. The average operate time, blood loss, and duration of hospital stay for Austin-Moore group were all significently less than those in bipolar group. Both groups had a high satisfactory result base on Harris hip scores, though there was a higher incidence of Acetabular erosion in Austin-Moore. We concluded that Austin-Moore will be the choice for displaced femoral neck fracture of the elderly with poor medical conditions, while Bipolar endoprosthesis will be used for the elderly with stable medical conditions or avascular necrosis of femoral head with a decreased incidence of acetabular erosion.
