Tailor-made Surgical Guide Reduces Incidence of Outliers of Cup Placement
Tailor-made Surgical Guide Reduces Incidence of Outliers of Cup Placement
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DOI：
10.1007/s11999-009-0994-4
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发表时间：
2010-04-01
影响因子：
4.2
通讯作者：
Yoshikawa, Hideki
中科院分区：
文献类型：
--
作者：
Hananouchi, Takehito;Saito, Masanobu;Yoshikawa, Hideki
全髋关节置换术中假杯错位会增加术后并发症的风险，如颈杯撞击、脱位和磨损。我们询问，与不使用手术指南的患者相比，基于CT图像定制的手术指南是否会减少与术前计划的杯位对齐偏差超过10度的异常发生率。我们前瞻性地随访了38例（38髋，第一组）采用常规技术进行原发性THA的患者和31例（31髋，第二组）采用手术指导进行THA的患者。我们根据CT图像设计第二组的导引头，用克氏针固定在髋臼边缘，指示计划的杯位方向。术后CT图像显示，与常规方法相比，该指南减少了异常值的数量（组1,23.7%；组2,0%）。与传统技术相比，手术指南提供了更可靠的杯插入。
Malalignment of the cup in total hip arthroplasty (THA) increases the risks of postoperative complications such as neck cup impingement, dislocation, and wear. We asked whether a tailor-made surgical guide based on CT images would reduce the incidence of outliers beyond 10 degrees from preoperatively planned alignment of the cup compared with those without the surgical guide. We prospectively followed 38 patients (38 hips, Group 1) having primary THA with the conventional technique and 31 patients (31 hips, Group 2) using the surgical guide. We designed the guide for Group 2 based on CT images and fixed it to the acetabular edge with a Kirschner wire to indicate the planned cup direction. Postoperative CT images showed the guide reduced the number of outliers compared with the conventional method (Group 1, 23.7%; Group 2, 0%). The surgical guide provided more reliable cup insertion compared with conventional techniques.