Validation of patient specific surgical guides in total hip arthroplasty. Issue 1 (31st October 2013)

• Record Type: Journal Article
• Authors: Sakai, Takashi; Hanada, Toshihisa; Murase, Tsuyoshi; Kitada, Makoto; Hamada, Hidetoshi; Yoshikawa, Hideki; Sugano, Nobuhiko
• Is Part Of: International journal of medical robotics and computer assisted surgery. Volume 10:Issue 1(2014)
• Page Start: 113
• Page End: 120
• Publication Date: 2013-10-31
• Subjects: Robotics in medicine -- Periodicals; Surgery -- Technological innovations -- Periodicals; Imaging systems in medicine -- Periodicals; 617.90285
• DOI: 10.1002/rcs.1547
• Languages: English
• ISSNs: 1478-5951

Abstract

<abstract abstract-type="main"> <title>Abstract</title> <sec id="rcs1547-sec-0001" sec-type="section"> <title>Background</title> <p>The validation of patient‐specific surgical guides (PSGs) by their design and the comparison of planned and actual PSG setting in total hip arthroplasty (THA) have not previously been reported.</p> </sec> <sec id="rcs1547-sec-0002" sec-type="section"> <title>Methods</title> <p>The errors between preoperative planning and computed tomography (CT)‐based PSG setting (E1), and between preoperative planning and implantation (E2) were evaluated using CT in 16 fresh cadaveric hips.</p> </sec> <sec id="rcs1547-sec-0003" sec-type="section"> <title>Results</title> <p>E2 was significantly smaller with the wide‐base‐contact resurfacing‐THA PSG than with the narrow‐base‐contact type (<italic>P</italic> < 0.05). E1/E2 of the wide‐base‐contact neck‐cut PSG was 1.6 ± 0.7°/2.4 ± 1.1° for the coronal plane and 1.2 ± 0.8 mm/0.7 ± 0.5 mm for the medial neck‐cut height. E1/E2 of the wide‐base‐contact cup‐impaction PSG was 1.0 ± 0.9°/3.4 ± 1.9° for inclination and 1.7 ± 1.1°/6.6 ± 4.4° for anteversion.</p> </sec> <sec id="rcs1547-sec-0004" sec-type="section"> <title>Conclusions</title> <p>The wide‐base‐contact PSG in resurfacing‐THA and the PSG for neck‐cut in THA could be applied clinically. Although cup‐impaction PSG setting was acceptable, errors were made due to the impaction process during cup implantation. Copyright © 2013 John Wiley & Sons, Ltd.</p> </sec> </abstract>