然而,对于高位髌骨,髌骨仅在膝关节高度屈曲时接合在滑车沟中。因此,在膝关节屈曲 20-30 度的情况下进行膝关节侧位 X 光片对于确保准确测量各种比率非常重要。
参考
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2. Paul R, Brutico J, Wright M et al. Strong Agreement Between Magnetic Resonance Imaging and Radiographs for Caton–Deschamps Index in Patients With Patellofemoral Instability. Arthroscopy, Sports Medicine, and Rehabilitation. 2021;3(6):e1621-8. doi:10.1016/j.asmr.2021.07.017 - Pubmed
3. Tai A, Alparslan H, Townsend B et al. Accuracy of Cross-Table Lateral Knee Radiography for Evaluation of Joint Effusions. AJR Am J Roentgenol. 2009;193(4):W339-44. doi:10.2214/ajr.09.2562 - Pubmed