Surgeon Error in Performing Intraoperative Estimation of Stem Anteversion in Cementless Total Hip Arthroplasty
Surgeon Error in Performing Intraoperative Estimation of Stem Anteversion in Cementless Total Hip Arthroplasty
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DOI：
10.1016/j.arth.2013.03.006
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发表时间：
2013-10-01
影响因子：
3.5
通讯作者：
Iwamoto, Yukihide
中科院分区：
文献类型：
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作者：
Hirata, Masanobu;Nakashima, Yasuharu;Iwamoto, Yukihide
为了检验全髋关节置换术（THA）中术中预估椎体前倾的准确性，我们比较了73例患者73髋的术中预估椎体前倾（预估假体前倾）和术后计算机断层扫描测量的椎体前倾（真前倾）。预估假体前倾明显大于真实前倾5.8度，手术误差的平均绝对值为7.3度，范围从11度低估到25度高估。当真正的前倾较小时，外科医生往往会高估。一项多变量分析显示，晚期膝骨关节炎显著增加了外科医生的失误。这些结果表明，预估的假体前倾通常大于真正的前倾，膝关节骨性关节炎的程度影响手术错误的程度。(C) 2013爱思唯尔公司版权所有。
To examine the accuracy of intraoperative estimation of stem anteversion in total hip arthroplasty (THA), we compared the intraoperatively estimated stem anteversion (estimated prosthetic anteversion) to stem anteversion measured by postoperative computed tomography (true anteversion) in 73 hips in 73 patients. Estimated prosthetic anteversion was significantly greater than true anteversion by 5.8 degrees, and the mean absolute value of surgeon error was 7.3 degrees ranging from 11 degrees underestimation to 25 degrees overestimation. Surgeons tended to overestimate when the true anteversion was smaller. A multivariate analysis showed that advanced knee osteoarthritis significantly increased surgeon error. These results indicated that estimated prosthetic anteversion was generally larger than true anteversion and that the grade of knee osteoarthritis affected the degree of surgeon error. (C) 2013 Elsevier Inc. All rights reserved.