Ling R S
Princess Elizabeth Orthopaedic Hospital, Exeter, Devon, U.K.
Chir Organi Mov. 1992 Oct-Dec;77(4):373-81.
Results obtained with 433 cemented prostheses with original design, implanted at Exeter since 1969, are presented. Clinical and radiographic findings were evaluated on 88% of cases at 7,4-13, 4-16, 4 follow-ups. Average age at surgery was 66,7 years. Sixty-two (14,3%) prostheses have been revised. Stem loosening was evident in 13 (3%) cases, of which 11 were revised. Socket loosening was evident in 21 patients (4,9%), all revised. Due to sepsis 7 prosthetic were explanted (Girdlestone) were done. Stem sinking > 2 mm into the cement mantle was observed at 16,4 years follow-up in 15% of cases, with no relation to pain. None of the patients showed a complete radiolucent line around the stem. The biomechanical relevance of the tapered design of a smooth and collarless stem for the cemented implant is discussed.
本文展示了自1969年起在埃克塞特植入的433个采用原始设计的骨水泥假体的结果。在7.4 - 13.4、16.4年的随访中，对88%的病例进行了临床和影像学检查。手术时的平均年龄为66.7岁。62个（14.3%）假体进行了翻修。13个（3%）病例出现明显的柄松动，其中11个进行了翻修。21例患者（4.9%）出现明显的臼杯松动，均进行了翻修。因感染取出了7个假体（吉尔德斯通手术）。在16.4年的随访中，15%的病例观察到柄向骨水泥壳内下沉超过2毫米，与疼痛无关。没有患者在柄周围出现完整的透光线。讨论了光滑无领柄的锥形设计对骨水泥植入物的生物力学意义。
