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Passive Knee Joint Mechanics in A-P Forces: Role of Boundary Conditions, Cruciates, and Menisci


 The ligaments and menisci are the principal stabilizers of the knee joint under various loadings such as anterior-posterior (A-P) horizontal forces. When either of these structures is torn, damaged, or removed, the joint’s stability is compromised resulting in the overload of remaining intact ligaments, menisci, and articular cartilage. The deleterious effects of altered mechanical environment of the joint associated with the ACL deficiency and meniscectomy in generating or accelerating the joint osteoarthritis have been well documented by many clinical studies. Following our earlier investigations [1,2], the purpose of this work is to study the passive biomechanics of the tibiofemoral joint at full extension in A-P loads. Attention is given to the identification of the role of boundary conditions, cruciate ligaments, and menisci on the joint detailed response.