Where does the MPFL insert on the patella?

The correct answer is the upper 1/2 superior portion of the patella, where the Medial Patellofemoral Ligament (MPFL) inserts. This ligament is crucial for stabilizing the patella as it helps to hold the kneecap in its proper position within the femoral trochlea during knee movement. The MPFL acts primarily to prevent lateral dislocation of the patella, which can occur during physical activities or due to certain knee pathologies.

The anatomical positioning of the MPFL is significant because its attachment at the superior portion of the patella allows for optimal leverage and effectiveness in stabilizing the patella during knee flexion and extension. Understanding the precise location of the MPFL insertion helps clinicians diagnose potential injuries and plan appropriate interventions in cases of patellar instability.