What is the correct procedure in Dr. Gordon Mackay's IB ACL repair technique?

In Dr. Gordon Mackay's IB ACL repair technique, the correct procedure involves tying the ACL stump stitch after the implant has been anchored. This approach is critical because it ensures that the graft or stitch is securely held in place, which enhances the stability and effectiveness of the repair. By anchoring the implant first, the surgeon can then precisely position and tension the ACL stump stitch, promoting optimal healing and recovery outcomes. This sequential method is fundamental to the technique, as it aligns with current best practices in ACL repair to improve biomechanical stability and restore function to the knee joint.

The other options do not align with the established protocols of this surgical technique. For example, tying the button to the tibia first may compromise the positioning of the graft. Ignoring the femoral side in the stitching process would disregard an essential aspect of complete ACL reconstruction, and limiting the drilling to only the tibial tunnel would not address the necessary anatomical considerations for effective surgery.