Tailor-made surgical guide based on rapid prototyping technique for cup insertion in total hip arthroplasty
Tailor-made surgical guide based on rapid prototyping technique for cup insertion in total hip arthroplasty
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DOI：
10.1002/rcs.243
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发表时间：
2009-06-01
影响因子：
2.5
通讯作者：
Yoshikawa, Hideki
中科院分区：
文献类型：
--
作者：
Hananouchi, Takehito;Saito, Masanobu;Yoshikawa, Hideki
背景快速成型（RP）技术制作的全髋关节置换术中假杯置入手术指南可有效避免假杯错位，避免术后并发症。方法针对这一研究问题，我们对24例患者的CT图像进行了基于rp的引导。我们将其设计成适合于髋臼边缘，并插入克氏针（k -丝），以指示计划的杯形方向。术中我们将其置于髋臼边缘，通过髋臼上导钉插入k -丝，在观察k -丝对齐的同时植入假杯。我们还记录了使用指南所需的额外时间。结果计划矫正与术后矫正的平均杯形精度外展为2.8度（SD = 2.1度），前倾为3.7度（SD = 2.7度）。平均额外时间为3.5（范围2-6）分钟。结论我们可以在不消耗过多时间的情况下以可接受的精度使用该指南。版权所有John Wiley & Sons， Ltd. 2009
Background A surgical guide made by the rapid prototyping (RP) technique for cup insertion in total hip arthroplasty might be useful to avoid malalignment of the cup, which indicates postoperative complications.Methods To address this research question, we applied a RP-based guide to 24 patients with their CT images. We designed it to fit onto the acetabular edge and to insert a Kirschner wire (K-wire) which indicated a planned cup direction. We intraoperatively placed it on the acetabular edge, inserted the K-wire through the guide on the superior acetabulum and implanted the cup while observing the alignment of the K-wire. We also recorded the additional time needed to use the guide.Results The mean cup accuracy between planned and postoperative alignments was 2.8 degrees (SD = 2.1 degrees) for abduction and 3.7 degrees (SD = 2.7 degrees) for anteversion. The mean additional time was 3.5 (range 2-6) min.Conclusion We can use this guide with acceptable accuracy and without consuming an excessive amount of time. Copyright (C) 2009 John Wiley & Sons, Ltd.