基于双侧差异二维评估的股骨外侧弯曲与膝内翻畸形的关系
Relationship between Lateral Femoral Bowing and Varus Knee Deformity Based on Two-Dimensional Assessment of Side-to-Side Differences.
作者信息
Cho Myung-Rae, Lee Young Sik, Choi Won-Kee
机构信息
Department of Orthopaedic Surgery, Daegu Catholic University Medical Center, Daegu, Korea.
出版信息
Knee Surg Relat Res. 2018 Mar 1;30(1):58-63. doi: 10.5792/ksrr.17.007.
PURPOSE
The objective was to evaluate the relationship between side-to-side differences of lateral femoral bowing and varus knee deformity based on two-dimensional (2D) assessment in unilateral total knee arthroplasty (TKA).
MATERIALS AND METHODS
A total of 143 patients with varus knee osteoarthritis who underwent unilateral TKA were enrolled. We evaluated the side-to-side differences of the frontal lower limb alignment by assessing lateral femoral bowing, anatomical medial distal femoral angle, and anatomical medial proximal tibial angle (aMPTA).
RESULTS
The average values of all anatomical indices were significantly different between the operated side and the non-operated side (p＜0.05). The side-to-side difference in hip knee ankle (HKA) angle had a statistically significant correlation with that in lateral femoral bowing (intraclass correlation coefficient, 0.259; p=0.002) and that in aMPTA. Linear regression analysis showed 0.199° of side-to-side difference in lateral femoral bowing was associated with 1° of side-to-side difference in bilateral HKA angle.
CONCLUSIONS
The side-to-side difference in lateral femoral bowing showed a tendency to increase in proportion to varus knee deformity based on 2D assessment in unilateral TKA patients.
目的
基于二维（2D）评估，探讨单侧全膝关节置换术（TKA）中股骨外侧弯曲的左右差异与膝内翻畸形之间的关系。
材料与方法
共纳入143例行单侧TKA的膝内翻骨关节炎患者。通过评估股骨外侧弯曲、解剖学股骨远端内侧角和解剖学胫骨近端内侧角（aMPTA），我们评估了下肢额状面排列的左右差异。
结果
所有解剖学指标的平均值在手术侧和非手术侧之间存在显著差异（p＜0.05）。髋膝踝（HKA）角的左右差异与股骨外侧弯曲的左右差异（组内相关系数，0.259；p = 0.002）以及aMPaMPTA的左右差异具有统计学显著相关性。线性回归分析显示，股骨外侧弯曲的左右差异0.199°与双侧HKA角的左右差异1°相关。
结论
基于单侧TKA患者的二维评估，股骨外侧弯曲的左右差异显示出与膝内翻畸形成比例增加的趋势。
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