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Right knee arthroscopy, viewing from anterolateral portal. The arthroscopy is performed to verify the extracapsular position and functioning of the MPFL graft. The MPFL graft is typically taut in extension (inset) and it would relax with flexion as the patella is constrained by trochlea. Nitinol wire (black arrows) is maintained in the femoral tunnel. (MPFL, medial patellofemoral ligament.)
