Learning Objectives:

1. Analyze the patient's clinical presentation and surgical history to identify indications for double-bundle PCL reconstruction. 2. Evaluate the effectiveness of Achilles and tibialis anterior allografts in restoring knee stability post-MCL reconstruction. 3. Apply evidence-based rehabilitation protocols to optimize recovery and functional outcomes in complex knee reconstructions. 4. Interpret postoperative imaging and clinical tests to assess posterior tibial subluxation and ligament integrity. 5. Compare single-bundle versus double-bundle PCL reconstruction techniques to inform clinical decision-making.

Keywords: posterior cruciate ligament; double-bundle reconstruction; allograft