Abstract Summary
Post-traumatic osteoarthritis (OA) is especially common in the trochlear cartilage of the patellofermoral (PF) joint after anterior cruciate ligament reconstruction (ACLR). The effect of walking mechanics on OA after ACLR is established in the tibiofemoral joint, but not in the PF joint. Our purpose was to define the relationship between gait mechanics 3 months after ACLR and trochlear T2 relaxation times at 6 months. Our findings suggest higher involved limb quadriceps muscle forces during gait 3 months after ACLR may promote healthier trochlear cartilage, suggesting rehabilitation should target quadriceps muscle strength and activation for PF joint health.
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