Olsen Michael, Naudie Douglas D, Edwards Max R, Sellan Michael E, McCalden Richard W, Schemitsch Emil H
Martin Orthopaedic Biomechanics Laboratory, St. Michael's Hospital, University of Toronto, B114 Li Ka Shing Knowledge Institute, Toronto, ON, Canada.
Department of Surgery, Division of Orthopaedic Surgery, London Health Sciences Centre, Western University, London, ON, Canada.
J Arthroplasty. 2014 Mar;29(3):590-5. doi: 10.1016/j.arth.2013.08.001. Epub 2013 Sep 12.
A novel alternative to conventional instrumentation for femoral component insertion in hip resurfacing is a patient specific, computed tomography based femoral alignment guide. A benchside study using cadaveric femora was performed comparing a custom alignment guide to conventional instrumentation and computer navigation. A clinical series of twenty-five hip resurfacings utilizing a custom alignment guide was conducted by three surgeons experienced in hip resurfacing. Using cadaveric femora, the custom guide was comparable to conventional instrumentation with computer navigation proving superior to both. Clinical femoral component alignment accuracy was 3.7° and measured within ± 5° of plan in 20 of 24 cases. Patient specific femoral alignment guides provide a satisfactory level of accuracy and may be a better alternative to conventional instrumentation for initial femoral guidewire placement in hip resurfacing.
一种用于髋关节表面置换术中股骨部件植入的新型传统器械替代方法是基于计算机断层扫描的患者特异性股骨对线导向器。进行了一项使用尸体股骨的实验台研究，将定制的对线导向器与传统器械及计算机导航进行比较。由三位有髋关节表面置换经验的外科医生进行了一系列25例使用定制对线导向器的髋关节表面置换临床手术。使用尸体股骨时，定制导向器与传统器械相当，而计算机导航则优于两者。临床股骨部件对线精度为3.7°，24例中的20例测量结果在计划的±5°范围内。患者特异性股骨对线导向器提供了令人满意的精度水平，对于髋关节表面置换术中初始股骨导丝的放置，可能是比传统器械更好的选择。
