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又翻了一篇 Baek, S.-H. and S.-Y. Kim (2008). "Cementless Total Hip Arthroplasty with Alumina Bearings in Patients Younger Than Fifty with Femoral Head Osteonecrosis." J Bone Joint Surg Am 90(6): 1314-1320.50岁以下的股骨头坏死患者使用铝球轴承非骨水泥全髋关节成形术
背景：目前有一些关于股骨头坏死的年轻患者使用陶瓷球全髋关节成形术成的预后结果互不一致致的报道。我们前瞻性的调查了在此年龄段的使用现代铝球轴承非骨水泥全髋关节成形术治疗股骨头坏死患者术后的情况。 Methods: We prospectively followed sixty patients (seventy-one hips) with a mean age of 39.1 years for an average of 7.1 years.All procedures were performed at the same institution by one surgeon, and the results were evaluated serially.The clinical evaluations included use of the Harris hip score, and activities of daily living were evaluated with use of the criteria of Johnston et al. 方法：我们前瞻性的追踪调查平均年龄为39.1岁的60位（共71个髋部）的患者，调查的平均时长为7.1年。所有操作都在同一医疗机构由同一个医生完成，并且严谨的评价所获结果。 临床评价使用Harris髋部评分，及日常起居活动则用Johnston等人制定的准则。 Results: The mean Harris hip score was 97.0 points at the time of final follow-up. Thirteen patients (fourteen hips, 20%) reported noise in the hip. Loosening or osteolysis was not observed in any hip, and no prosthesis had been revised. No hip had dislocated, and no ceramic fracture d occurred. 结果：最后随访得到的Harris髋部评分平均分为97.0. 有13名患者（14个髋部，20%）回报存在髋部噪音（嘈杂？）的情况。无松弛及骨质溶解被观察到，并且无假体重置。亦无髋关节脱位及陶瓷断裂发生。 Conclusions: After a minimum of six years of follow-up, this cementless total hip arthroplasty with contemporary alumina bearings was found to be a promising procedure for young, active patients with osteonecrosis of the femoral head. However, we remain concerned about the long-term implications of the noise that was reported in these hips. Level of Evidence: Therapeutic Level IV. See Instructions to Authors for a complete description of levels of evidence. 不清楚之处：ceramic bearing 最佳的翻译是什么：陶瓷头？ 陶瓷球轴承？ 陶瓷轴承？ contemporary alumina bearings 是最不清楚的东西。
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