Anterior Cruciate Ligament Injuries Alter the Kinematics and Kinetics of Knees with or Without Meniscal Deficiency
The purpose of this paper was to study the biomechanical behaviors of knees with anterior cruciate ligament deficient (ACLD) with or without a combined medial or/and lateral meniscal injury during level walking. The motion capture system and the modeling system (AnyBody) were applied to simulate the kinematic and kinetic properties of knees. The results show that the knees with ACLD exhibited significantly less extension than the control knees at the mid stance. A lower extension moment and adduction moment in all ACLD-affected knees were detected during the terminal stance when compared with control knees. The ACLDML group showed significantly lower proximodistal compressive forces and anteroposterior and mediolateral shear forces, while the shear forces tended to increase in the ACLD, ACLDL, and ACLDM groups.
This study was supported by Beijing Municipal Natural Science Foundation (No. 7172120) and National Natural Science Foundation of China (No. 11872074).
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