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US 8,784,423 B2Granted
Tibial cross-pin fixation techniques and instrumentation
AssigneeArthrex, Inc.
InventorsMarkus Kowarsch, Dominik Steffens, Gerlinde Michel, Hans Linden, Nick J. T. Metcalfe, Jacob A. Jolly
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Abstract
Techniques and reconstruction systems for ACL repair by providing cross-pin fixation of a graft within a tibial tunnel. The invention provides tibial fixation techniques according to which cross-pin fixation of a graft (for example, an Anterior Tibialis allograft) is achieved on the tibial side, close to the jointline, by a single incision and with cortical fixation.
Claims20
A method of surgery, comprising the steps of:
- forming a tibial socket in tibia by drilling with a retrograde cutter from an articular surface of the tibia and into the tibia, the tibial socket having an entrance in communication with an articular joint space and a sidewall;
- introducing a flexible strand transversely into the tibial socket through the sidewall of the tibial socket;
- pushing the flexible strand with the retrograde cutter into the articular joint space and pulling a portion of the strand out through the socket entrance to form a loop in the flexible strand outside the entrance to the tibial socket;
- engaging a graft, in the articular joint space, with the loop of the flexible strand out of the socket entrance;
- and
- pulling the flexible strand and the graft engaged thereto into the tibial socket.
3 more elements
A method of cross-pin ACL reconstruction, comprising the steps of:
- forming a tibial socket in tibia in a retrograde manner by drilling with a retrograde cutter from an articular surface of the tibia and into the tibia, the socket having an entrance in communication with an articular joint space and a sidewall;
- drilling a guide pin through a guide member oriented about parallel to the tibial plateau, and through the sidewall of the bone tibial socket so as to transversely intersect the tibial socket;
- pulling a flexible strand transversely through the guide member and through the tibial socket using the guide pin;
- pushing the flexible strand with the retrograde cutter into the articular joint space to form a loop in the flexible strand and pulling the loop in the flexible strand out through the entrance of the tibial socket;
- engaging a graft, in the articular joint space, with the loop in the flexible strand pulled out of the entrance of the tibial socket;
- pulling the flexible strand in a direction transverse to the tibial socket so as to draw the graft engaged therewith into the tibial socket;
- passing an implant transversely through a loop formed in the graft in the tibial socket;
- and
- securing the graft in a femoral socket by attaching the graft to a fixation device.
6 more elements
Dependencies are inferred from the claim text.