Raia Frank J, Chapman Cary B, Herrera Mauricio F, Schweppe Michael W, Michelsen Christopher B, Rosenwasser Melvin P
New York Presbyterian Hospital, Columbia University College of Physicians and Surgeons, New York, NY 10032, USA.
Clin Orthop Relat Res. 2003 Sep(414):259-65. doi: 10.1097/01.blo.0000081938.75404.09.
This prospective randomized trial compared the efficacy of unipolar versus bipolar hemiarthroplasty in elderly patients (> or = 65 years) with displaced femoral neck fractures in terms of quality of life and functional outcomes. One hundred fifteen patients with a mean age of 82.1 years were enrolled in this study and randomized to either unipolar or bipolar hemiarthroplasty. Quality of life and functional outcomes were assessed using the Musculoskeletal Functional Assessment instrument and Short Form-36 health survey. Seventy-eight patients completed 1 year of followup. There were no differences between the groups in estimated blood loss, length of hospital stay, mortality rate, number of dislocations, postoperative complications, or ambulatory status at 1 year. There also were no significant differences between the two groups at either point in postoperative Short Form-36 or Musculoskeletal Functional Assessment instrument scores. Results of this prospective randomized study suggest that the bipolar endoprosthesis provides no advantage in the treatment of displaced femoral neck fractures in elderly patients regarding quality of life and functional outcomes.
这项前瞻性随机试验比较了单极与双极半髋关节置换术在老年（≥65岁）移位型股骨颈骨折患者中的疗效，评估指标为生活质量和功能结局。115例平均年龄82.1岁的患者纳入本研究，并随机分为单极或双极半髋关节置换术组。使用肌肉骨骼功能评估工具和简明健康调查36项量表评估生活质量和功能结局。78例患者完成了1年的随访。两组在估计失血量、住院时间、死亡率、脱位次数、术后并发症或1年时的行走状态方面无差异。术后简明健康调查36项量表或肌肉骨骼功能评估工具评分在两组间也无显著差异。这项前瞻性随机研究的结果表明，在老年移位型股骨颈骨折患者的治疗中，双极假体在生活质量和功能结局方面并无优势。
