Prevalence and Predictors of Post-Operative Coronal Alignment Outliers and Their Association With the Functional Outcomes in Navigated Total Knee Arthroplasty

被引:14
作者
Chowdhry, Madhav [2 ]
Bamne, Ankur B. [1 ]
Na, Young Gon [1 ]
Kang, Yeon Gwi [1 ]
Kim, Tae Kyun [1 ]
机构
[1] Seoul Natl Univ, Bundang Hosp, Joint Reconstruct Ctr, Songnam 463707, Gyeonggi Do, South Korea
[2] Aligarh Muslim Univ, Jawaharlal Nehru Med Coll, Aligarh, Uttar Pradesh, India
关键词
computer-assisted navigation; total knee arthroplasty; alignment; outliers; functional outcomes; COMPUTER-ASSISTED-NAVIGATION; CONVENTIONAL TECHNIQUE; COMPONENT ALIGNMENT; PROSPECTIVE TRIAL; RANDOMIZED-TRIAL; REPLACEMENT; SYSTEM; IMPLANTATION; ORIENTATION; ACCURACY;
D O I
10.1016/j.arth.2014.07.015
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
We aimed to determine the prevalence and predictors for being an outlier after navigated TKA and asked whether navigated TKAs with perfect coronal alignment have better functional outcomes than those without it. Alignment was measured in 124 patients (191 knees) with navigated TKAs who were available for 1 year functional outcome assessment. The outcomes were compared among the 3 subgroups divided by the deviation of mechanical axis from neutral (0 degrees): the perfect, 0 degrees or within 1 degrees; the acceptable, 1 degrees-3 degrees; and the outlier, beyond 3 degrees. The prevalence of outliers was 20.4%, and the severity of preoperative varus deformity was the strongest predictor. Accuracy of coronal alignment in radiographs did not correlate consistently with functional outcomes. (C) 2014 Elsevier Inc. All rights reserved.
引用
收藏
页码:2357 / 2362
页数:6
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