Validation of the femoral component placement during hip resurfacing: a comparison between the conventional jig, patient‐specific template, and CT‐based navigation. Issue 2 (5th March 2013)

• Record Type: Journal Article
• Authors: Kitada, Makoto; Sakai, Takashi; Murase, Tsuyoshi; Hanada, Toshihisa; Nakamura, Nobuo; Sugano, Nobuhiko
• Is Part Of: International journal of medical robotics and computer assisted surgery. Volume 9:Issue 2(2013)
• Page Start: 223
• Page End: 229
• Publication Date: 2013-03-05
• Subjects: Robotics in medicine -- Periodicals; Surgery -- Technological innovations -- Periodicals; Imaging systems in medicine -- Periodicals; 617.90285
• DOI: 10.1002/rcs.1490
• Languages: English
• ISSNs: 1478-5951

Abstract

<abstract abstract-type="main"> <title>Abstract</title> <sec id="rcs1490-sec-0001" sec-type="section"> <title>Background</title> <p>Appropriate insertion of a femoral guidewire is essential for hip resurfacing. A simulation study was planned using synthetic femoral bone models and the accuracy and precision of femoral guidewire alignment and insertion point were compared between conventional jigs, patient‐specific templates, and computed tomography (CT) based navigation techniques.</p> </sec> <sec id="rcs1490-sec-0002" sec-type="section"> <title>Methods</title> <p>Anteversion, stem‐shaft angle, and the three‐dimensional insertion point were measured postoperative with CT. Errors between planned and postoperative measurement and precision were evaluated.</p> </sec> <sec id="rcs1490-sec-0003" sec-type="section"> <title>Results</title> <p>There were no statistically significant differences in error for anteversion or insertion point, although the mechanical jig showed greater error in the stem‐shaft angle than the others. Patient‐specific template and CT‐based navigation showed good precision with high intraclass correlation (ICC) (template, 0.908 to 1.000; navigation, 0.929 to 0.995) and small root mean square error (RMSE) (0.954 to 2.969; 1.468 to 3.213). The mechanical jig group performance was inferior to the others.</p> </sec> <sec id="rcs1490-sec-0004" sec-type="section"> <title>Conclusions</title> <p>Patient‐specific templates and CT‐based navigation had good accuracy and precision. The mechanical jig technique was inferior to the others. Copyright © 2013 John Wiley & Sons, Ltd.</p> </sec> </abstract>