Hafez Mahmoud A, Ragheb Gad, Hamed Adel, Ali Amr, Karim Said
Biomed Tech (Berl). 2016 Oct 1;61(5):519-524. doi: 10.1515/bmt-2015-0009.
Total hip arthroplasty (THA) is the standard procedure for end-stage arthritis of the hip. Its technical success relies on preoperative planning of the surgical procedure and virtual setup of the operative performance. Digital hip templating is one methodology of preoperative planning for THA which requires a digital preoperative radiograph and a computer with special software.
This is a prospective study involving 23 patients (25 hips) who were candidates for complex THA surgery (unilateral or bilateral). Digital templating is done by radiographic assessment using radiographic magnification correction, leg length discrepancy and correction measurements, acetabular component and femoral component templating as well as neck resection measurement.
The overall accuracy for templating the stem implant's exact size is 81%. This percentage increased to 94% when considering sizing within 1 size.
Digital templating has proven effective, reliable and essential technique for preoperative planning and accurate prediction of THA sizing and alignment.
全髋关节置换术（THA）是治疗终末期髋关节炎的标准手术。其技术成功依赖于手术的术前规划和手术操作的虚拟设置。数字髋关节模板技术是THA术前规划的一种方法，需要术前数字化X线片和一台装有特殊软件的计算机。
这是一项前瞻性研究，纳入了23例（25髋）拟行复杂THA手术（单侧或双侧）的患者。通过使用X线放大率校正、肢体长度差异及校正测量、髋臼假体和股骨假体模板制作以及颈部截骨测量的影像学评估来进行数字模板制作。
模板确定柄状植入物确切尺寸的总体准确率为81%。当考虑尺寸在1个型号范围内时，该百分比增至94%。
数字模板技术已被证明是术前规划以及准确预测THA尺寸和对线的有效、可靠且必不可少的技术。
