Distribution of Force in the Medial Collateral Ligament Complex During Simulated Clinical Tests of Knee Stability
Conclusion:
The POL provides complementary load bearing to the ACL near extension in response to combined torques, which capture key components of the pivot-shift examination. The sMCL resists the valgus component of the maneuver alone, a loading pattern unique from those of the POL and ACL. The dMCL is not loaded during clinical tests of rotational knee stability in the ACL-competent knee.
Clinical Relevance:
Both the sMCL and POL work together with the ACL to resist combined moments, which form key components of the pivot-shift examination.
Source: The American Journal of Sports Medicine - Category: Sports Medicine Authors: Schafer, K. A., Tucker, S., Griffith, T., Sheikh, S., Wickiewicz, T. L., Nawabi, D. H., Imhauser, C. W., Pearle, A. D. Tags: Biomechanics, ligament, Knee ligaments, ACL, Knee ligaments, MCL Source Type: research