Department of Orthopedics and Traumatology, CHU of Reims, 51100 Reims, France.
Department of Orthopedics and Traumatology, CHU of Reims, 51100 Reims, France.
Orthop Traumatol Surg Res. 2022 May;108(3):103251. doi: 10.1016/j.otsr.2022.103251. Epub 2022 Feb 17.
Lower limb alignment is a major determinant of long-term outcomes after osteotomy or total knee replacement. The aim of this paper is to define the mean values of coronal and sagittal lower limb alignment for Caucasians as a function of sex using 3D reconstructions from CT-scans.
The analysis involved 586 Caucasian patients (269 males and 317 females) who had their hip-knee-ankle angle (HKA), lateral distal femoral angle (LDFA), medial proximal tibial angle (MPTA), posterior proximal tibial angle (PPTA), lateral and medial proximal posterior tibial angles (LPPTA/MPPTA), posterior distal femoral angle (PDFA), and non-weightbearing joint convergence angle (nwJLCA) measured. This analysis was performed using a CT-scan-based modelling system (SOMA). Differences between sexes and morphotypes (neutral, varus and valgus) were analyzed statistically.
The mean HKA was 180±2.57°, LDFA 86.1±1.87°, MPTA 86.1±2.15°, PPTA 84.6±2.58°, LPPTA 84.9±3.17°, MPPTA 85.1±3.21°, PDFA 85.3±1.50° and nwJLCA 0.82±1.32°. There was a significant difference between sexes for the HKA (180.3±2.46° and 179.0±2.52°), LDFA (85.6±1.90° and 86.8±1.61°), MPPTA (84.7±3.06° and 85. 6±3.31°). The neutral morphotype was more frequent in women than men (78% vs. 73%), the varus morphotype was more frequent in men than women (20% vs. 7.6%) and the valgus morphotype was more frequent in women than men (15% vs. 6.7%).
Normal parameters for lower limb alignment in Caucasian patients were described in the coronal and sagittal planes. There was a significant influence of sex in the coronal plane, which was not found in the sagittal plane.
IV; retrospective cohort study.
下肢对线是截骨或全膝关节置换术后长期疗效的主要决定因素。本文的目的是使用 CT 扫描三维重建，定义高加索人群的冠状面和矢状面下肢对线的平均值，具体取决于性别。
分析涉及 586 例高加索患者（男 269 例，女 317 例），测量其髋膝踝角（HKA）、外侧远端股骨角（LDFA）、内侧近端胫骨角（MPTA）、后近端胫骨角（PPTA）、外侧和内侧近端后胫骨角（LPPTA/MPPTA）、后远端股骨角（PDFA）和非负重关节会聚角（nwJLCA）。该分析使用基于 CT 扫描的建模系统（SOMA）进行。统计学分析了性别和形态类型（中性、内翻和外翻）之间的差异。
平均 HKA 为 180±2.57°，LDFA 为 86.1±1.87°，MPTA 为 86.1±2.15°，PPTA 为 84.6±2.58°，LPPTA 为 84.9±3.17°，MPPTA 为 85.1±3.21°，PDFA 为 85.3±1.50°，nwJLCA 为 0.82±1.32°。HKA（180.3±2.46°和 179.0±2.52°）、LDFA（85.6±1.90°和 86.8±1.61°）、MPPTA（84.7±3.06°和 85.6±3.31°）方面，男女之间存在显著差异。女性中中性形态类型比男性更常见（78%比 73%），男性中内翻形态类型比女性更常见（20%比 7.6%），女性中外翻形态类型比男性更常见（15%比 6.7%）。
描述了高加索患者下肢冠状面和矢状面对线的正常参数。冠状面存在显著的性别影响，但矢状面不存在。
IV；回顾性队列研究。
