Shuzhen Li, Yu Qin, Hao Wang, Zhi Qin, Lianjian Jiang, Shengwang Zhu, Feng Zeng, Ke Sun, Jieming Wen, Dong Yin
BACKGROUND: Ramp lesions of the medial meniscus have an impact on joint stability in anterior cruciate ligament (ACL)-deficient knees, but the impact of lesion length and repair is unclear. PURPOSE/HYPOTHESIS: The purpose of this cadaveric study was to evaluate the effect of medial meniscal ramp lesion repair on the biomechanics of ACL-deficient knee joints. It was hypothesized that (1) ramp lesions will increase the anterior tibial translation (ATT), internal rotation (IR), and external rotation (ER) in ACL-deficient knee joints; (2) increasing the length of the ramp lesion will further increase the ATT, IR, and ER; and (3) repairing the ramp lesion will reduce the ATT, IR, and ER after ACL reconstruction...
April 2023: Orthopaedic Journal of Sports Medicine