Radiographic evaluation of complete and incomplete discoid lateral meniscus.

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Abstract

[Indexed for MEDLINE] 16. Knee. 2022 Aug;37:171-179. doi: 10.1016/j.knee.2022.06.010. Epub 2022 Jul 6. Partial resection of lateral discoid meniscus changes lower limb axial alignment - A retrospective cohort study. He Y(1), Chen H(2), Fan Y(1), Zhou Y(1), Bao W(3). Author information: (1)Department of Orthopedics, Banan Hospital of Chongqing Medical University, China. (2)Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, China. (3)Department of Orthopedics, Banan Hospital of Chongqing Medical University, China. Electronic address: 137445886@qq.com. AIM: This study aimed to explore the changes in lower limb axial alignment and knee joint function after arthroscopic partial resection of the discoid lateral meniscus. METHODS: Preoperative and postoperative full-length weight-bearing radiographs of the lower limb were obtained from a total of 161 patients with lateral menisci tears from September 2018 to September 2020 who underwent partial meniscal resection. The patients were divided into discoid meniscus group (DMG) and ordinary meniscus group (OMG). The measured mechanical axis deviation (MAD), proximal tibia angle (PTA), and distal femoral angle (DFA) in the axial alignment of the lower limb were determined before and after surgery. Knee joint function on the affected side was determined using the International Knee Documentation Committee (IKDC) subjective scale and the Lysholm knee scoring scale before surgery and at one, six, 12, and 24 months after surgery. RESULTS: For MAD and DFA, there were statistically significant differences between the preoperative and postoperative findings within each group (P