Retrograde fixation technique with insert-molded interference screw

A method of anterior cruciate ligament reconstruction, the method comprising the steps of:

• forming a tibial tunnel between an anterior tibial surface and the tibial plateau;
• feeding a length of suture extending from a leading tip of an interference screw into the joint cavity and down through the tibial tunnel by way of the opening in the tibial plateau;
• placing a ligament graft in the tibial tunnel;
• drawing on the free end of strand exiting the anterior surface of the tibial tunnel to pull the interference screw into the joint cavity into axial alignment with the tunnel;
• using a driver to engage a cannulation extending into the interference screw from the leading tip of the screw;
• and
• screwing the interference screw into the tunnel by turning the driver.

A method of anterior cruciate ligament reconstruction, the method comprising the steps of:

• forming a femoral socket in a femur;
• feeding a length of suture extending from a leading tip of an interference screw into the joint cavity and through a tunnel extending from the socket to the exterior of the femur, the suture being insert-molded into the interference screw;
• placing a ligament graft in the femoral socket;
• drawing on the free end of the suture to pull the interference screw into the joint cavity into axial alignment with the socket;
• using a driver to engage a cannulation extending into the interference screw;
• and
• screwing the interference screw into the socket by turning the driver