What are the reinacula of the knee?

The reinacula of the knee refer to the medial and lateral ligamentous structures that connect the patella to the femur and tibia. These structures play a critical role in maintaining the stability and alignment of the patella during knee motion. Specifically, they help guide the patella as it moves within the femoral groove during flexion and extension, ensuring that it tracks properly and reduces the risk of dislocation or misalignment.

Understanding the function of the reinacula is essential for recognizing their importance in knee mechanics. They support the patellar ligament and help distribute forces exerted on the patella, contributing to both the functional stability of the knee and the efficiency of lower limb movement.