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Figure 4


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(A) Graft passage: The graft is passed beneath vastus medialis muscle and is ready to pass into the femoral tunnel. (B) Femoral tunnel: The femoral tunnel is drilled starting midway between the adductor tubercle and the medial femoral epicondyle. Tunnel trajectory should aim approximately 30° proximally in order for the tunnel to exit through cortical bone on the lateral side of the distal femur rather than through cancellous bone. The native MPFL footprint (depicted here by the red square) is approximately halfway between the adductor tubercle and medial epicondyle.

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