全髋关节置换术中使用和不使用计算机辅助系统时髋臼假体的定位：一项前瞻性、随机对照研究。
Acetabular component positioning in total hip arthroplasty with and without a computer-assisted system: a prospective, randomized and controlled study.
作者信息
Gurgel Henrique M C, Croci Alberto T, Cabrita Henrique A B A, Vicente José Ricardo N, Leonhardt Marcos C, Rodrigues João Carlos
机构信息
Department of Orthopedics and Traumatology, Instituto de Ortopedia e Traumatologia do Hospital das Clínicas, Faculty of Medicine, University of São Paulo, Brazil.
出版信息
J Arthroplasty. 2014 Jan;29(1):167-71. doi: 10.1016/j.arth.2013.04.017. Epub 2013 May 24.
In a study of the acetabular component in total hip arthroplasty, 20 hips were operated on using imageless navigation and 20 hips were operated on using the conventional method. The correct position of the acetabular component was evaluated with computed tomography, measuring the operative anteversion and the operative inclination and determining the cases inside Lewinnek's safe zone. The results were similar in all the analyses: a mean anteversion of 17.4° in the navigated group and 14.5° in the control group (P=.215); a mean inclination of 41.7° and 42.2° (P=.633); a mean deviation from the desired anteversion (15°) of 5.5° and 6.6° (P=.429); a mean deviation from the desired inclination of 3° and 3.2° (P=.783); and location inside the safe zone of 90% and 80% (P=.661). The acetabular component position's tomography analyses were similar whether using the imageless navigation or performing it conventionally.
在一项关于全髋关节置换术中髋臼部件的研究中，20例髋关节采用无影像导航进行手术，20例髋关节采用传统方法进行手术。通过计算机断层扫描评估髋臼部件的正确位置，测量手术前倾角和手术倾斜度，并确定Lewinnek安全区内的病例。所有分析结果相似：导航组平均前倾角为17.4°，对照组为14.5°（P = 0.215）；平均倾斜度分别为41.7°和42.2°（P = 0.633）；与期望前倾角（15°）的平均偏差分别为5.5°和6.6°（P = 0.429）；与期望倾斜度的平均偏差分别为3°和3.2°（P = 0.783）；安全区内的位置分别为90%和80%（P = 0.661）。无论使用无影像导航还是传统方法进行手术，髋臼部件位置的断层扫描分析结果相似。
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