股骨颈与踝关节间轴向旋转对正常膝关节运动学的影响：一项横断面研究
Influence of Axial Rotation Between the Femoral Neck and Ankle Joint on Kinematics in Normal Knees: A Cross-Sectional Study.
作者信息
Kono Kenichi, Taketomi Shuji, Yamazaki Takaharu, Kage Tomofumi, Tamaki Masashi, Inui Hiroshi, Tanaka Sakae, Tomita Tetsuya
机构信息
From the Department of Orthopedic Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo, Tokyo (Dr. Kono, Dr. Taketomi, Dr. Kage, Dr. Inui, and Dr. Tanaka); the Department of Information Systems, Faculty of Engineering, Saitama Institute of Technology, Fukaya, Saitama (Dr. Yamazaki); the Department of Orthopedic Biomaterial Science, Osaka University Graduate School of Medicine, Suita, Osaka (Dr. Tamaki, and Dr. Tomita); the Department of Orthopedic Surgery, Saitama Medical University, Saitama Medical Center, Kawagoe, Saitama (Dr. Inui); and the Department of Health Science, Graduate School of Health Science, Morinomiya University of Medical Sciences, Suminoe, Osaka, Japan (Dr. Tomita).
出版信息
J Am Acad Orthop Surg Glob Res Rev. 2025 Jan 7;9(1). doi: 10.5435/JAAOSGlobal-D-24-00169. eCollection 2025 Jan 1.
BACKGROUND
The effect of axial rotation between the femoral neck and ankle joint (total rotation [TR]) on normal knees is unknown. Therefore, this study aimed to investigate the TR effect on normal knee kinematics.
METHODS
Volunteers were divided into groups large (L), intermediate (I), and small (S), using hierarchical cluster analysis based on TR in the standing position. TR was measured using three-dimensional (3D) bone models generated from CT. A two-dimensional to 3-dimensional registration technique was used to assess the spatial position and femur and tibia orientation during squat. The axial rotation, varus-valgus alignment, and anterior-posterior translation of the femur relative to the tibia were evaluated.
RESULTS
Group L had the highest TR, whereas group S had the lowest TR (L: 36.6° ± 6.0°, I: 23.2° ± 3.0°, and S: 13.8° ± 5.1°). Above 50° of flexion, femoral external rotation was greater in group S than in groups L and I. From 40° to 110°, the medial side was more anterior in group L than in groups I and S, whereas the lateral side was more posterior in group S than in groups L and I.
CONCLUSIONS
Individuals with larger TR had more femur anterior-medial translation relative to the tibia.
背景
股骨颈与踝关节之间的轴向旋转（总旋转 [TR]）对正常膝关节的影响尚不清楚。因此，本研究旨在探讨TR对正常膝关节运动学的影响。
方法
基于站立位的TR，采用分层聚类分析将志愿者分为大（L）、中（I）、小（S）三组。使用CT生成的三维（3D）骨模型测量TR。采用二维到三维配准技术评估深蹲过程中股骨和胫骨的空间位置及方向。评估了股骨相对于胫骨的轴向旋转、内翻-外翻对线以及前后平移。
结果
L组的TR最高，而S组的TR最低（L组：36.6°±6.0°，I组：23.2°±3.0°，S组：13.8°±5.1°）。在屈曲超过50°时，S组的股骨外旋大于L组和I组。从40°到110°，L组的内侧比I组和S组更靠前，而S组的外侧比L组和I组更靠后。
结论
TR较大的个体，其股骨相对于胫骨的前内侧平移更多。
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