内侧膝关节骨关节炎患者下肢扭转与股骨和胫骨冠状形态的关系。
Relationship between lower limb torsion and coronal morphologies of the femur and tibia in patients with medial knee osteoarthritis.
机构信息
Department of Orthopaedic Surgery, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
出版信息
BMC Musculoskelet Disord. 2020 Apr 17;21(1):254. doi: 10.1186/s12891-020-03286-2.
BACKGROUND
To investigate the relationship between femoral or tibial torsion and hip-knee-ankle angle (HKA), mechanical lateral distal femoral angle (mLDFA), or mechanical medial proximal tibial angle (mMPTA) in patients with medial knee osteoarthritis (OA).
METHODS
A total of 75 knees were enrolled. Femoral and tibial torsions were measured by superimposing the axial planes of computed tomography images. The relationship between femoral or tibial torsion and HKA, mLDFA, or mMPTA on radiographs was examined.
RESULTS
The mean femoral torsion was 12.2 ± 8.5° internally; femoral internal and external torsions were observed in 70 and 5 knees, respectively. The mean tibial external torsion was 18.0 ± 7.4° externally; tibial external torsion was observed in all 75 knees. Femoral internal and tibial external torsions increased with lower mMPTA (r = 0.33, P = 0.003; r = - 0.32, P = 0.005, respectively) but were not related to HKA or mLDFA.
CONCLUSION
Femoral and tibial torsions were correlated with varus inclination of the proximal tibia in patients with medial knee OA.
背景
研究目的在于探讨内侧膝关节骨关节炎患者股骨或胫骨扭转与髋膝踝角（HKA）、机械性外侧股骨远端角（mLDFA）或机械性内侧胫骨近端角（mMPTA）之间的关系。
方法
共纳入 75 例膝关节。通过叠加 CT 图像的轴位来测量股骨和胫骨扭转。检查了 X 线片上股骨或胫骨扭转与 HKA、mLDFA 或 mMPTA 的关系。
结果
股骨扭转的平均内旋为 12.2°±8.5°；分别有 70 例和 5 例膝关节存在股骨内旋和外旋。胫骨外旋的平均外旋为 18.0°±7.4°；所有 75 例膝关节均存在胫骨外旋。股骨内旋和胫骨外旋与较低的 mMPTA 呈正相关（r=0.33，P=0.003；r=-0.32，P=0.005），但与 HKA 或 mLDFA 无关。
结论
在患有内侧膝关节骨关节炎的患者中，股骨和胫骨扭转与胫骨近端的内翻倾斜有关。
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