Potential predictor of knee osteoarthritis identified after ACL surgery
A special and intricate structure, the patellofemoral joint is made up of both static (bones and ligaments) and dynamic (moving) components (neuromuscular system). The patella is shaped like a triangle, with its point facing inferiorly. The main articulating surfaces of the patellofemoral joint, the trochlea and the distal articulating surface of the femur, are where it articulates superiorly.
Arthritis in the knee’s patellofemoral joint (PFJ) is common following anterior cruciate ligament reconstruction (ACLR) and may be linked with altered loading, or stress, at the joint. In a study published in the Journal of Orthopaedic Research, young adults post‐ACLR who exhibited lower PFJ loading during hopping were more likely to have PFJ osteoarthritis at 1‐year and worsening PFJ osteoarthritis between 1‐ and 5‐years.
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