Cross pinning guide devices and methods
Methods and devices are provided for implanting a cross-pin through a bone tunnel, such as in an arthroscopic surgical procedure. In general, the methods and devices allow a cross-pin hole to be formed in a medial side of a knee bone such that it intersects a bone tunnel formed in the knee bone. In one embodiment, a cross-pinning guide device is provided that can be configured to angularly position the cross-pin hole relative to the bone tunnel to allow the cross-pin hole to intersect the bone tunnel without passing through another side, e.g., a lateral side, of the knee bone. The knee bone can be a femur or a tibia such that the cross-pin hole and the bone tunnel can each be entirely formed in the femur or in the tibia.
1. A surgical method, comprising:
positioning a guide block of a cross pinning guide device on a medial side of a knee bone and positioning a needle guide of the cross pinning guide device on a lateral side of the knee bone;
adjusting a trajectory of a bore extending through the guide block based on an insertion depth of a needle inserted through a bore in the needle guide and into tissue on the lateral side of the knee bone; and
inserting a guide rod coupled to the guide block into a bone tunnel formed in the knee bone, and, with the guide rod inserted into the bone tunnel, rotating the cross pinning guide device about a longitudinal axis of the bone tunnel.
2. The method of claim 1 , further comprising, prior to adjusting the trajectory of the bore extending through the guide block, inserting the needle through the bore in the needle guide and into the tissue on the lateral side of the knee bone until a distal tip of the needle abuts an outer surface of the knee bone.
3. The method of claim 1 , further comprising, prior to positioning the guide block and prior to adjusting the trajectory of the bore extending through the guide block, mating a first end of a medial-lateral arc of the cross pinning guide device to the guide block, a second end of the medial-lateral arc including the needle guide.
4. The method of claim 1 , wherein the knee bone is one of a femur and a tibia.
5. The method of claim 1 , wherein the bore extending through the guide block is coaxial with the bore in the needle guide throughout the adjustment of the trajectory.
6. A surgical, method comprising:
positioning a guide block of a cross pinning guide device on a medical side of a knee bone and positioning a needle guide of the cross pinning guide device on a lateral side of the knee bone; and
adjusting a trajectory of a bore extending through the guide block based on an insertion depth of a needle inserted through a bore in the needle guide and into tissue on the lateral side of the knee bone, wherein the guide block is mated to a proximal-distal frame of the cross pinning guide device, and adjusting the trajectory of the bore extending through the guide block comprises sliding the guide block along the proximal-distal frame.
7. The method of claim 6 , wherein the bore extending through the guide block is coaxial with the bore in the needle guide regardless of the where the guide block is slid along the proximal-distal frame.
8. The method of claim 6 , further comprising determining the insertion depth of the needle based on a position of a mark on the needle relative to the bore in the needle guide.
9. A surgical, method comprising:
positioning a guide block of a cross pinning guide device on a medial side of a knee bone and positioning a needle guide of the cross pinning guide device on a lateral side of the knee bone;
adjusting a trajectory of a bore extending through the guide block based on an insertion depth of a needle inserted through a bore in the needle guide and into tissue on the lateral side of the knee bone; and
determining the insertion depth of the needle based on a position of a mark on the needle relative to the bore in the needle guide.
10. The method of claim 9 , wherein adjusting the trajectory of the bore extending through the guide block comprises rotating the cross pinning guide device relative to the knee bone about a longitudinal axis of a bone tunnel formed in the knee bone.
11. The method of claim 9 , further comprising, prior to positioning the guide block and prior to adjusting the trajectory of the bore extending through the guide block, mating a first end of a medial-lateral arc of the cross pinning guide device to the guide block, a second end of the medial-lateral arc including the needle guide.
12. The method of claim 9 , wherein the guide block is mated to a proximal-distal frame of the cross pinning guide device, and adjusting the trajectory of the bore extending through the guide block comprises sliding the guide block along the proximal-distal frame.
13. A surgical, method comprising:
positioning a guide block of a cross pinning guide device on a medial side of a knee bone and positioning a guide of the cross pinning guide device on a lateral side of the knee bone; and
adjusting a trajectory of a bore extending through the guide block based on an insertion depth of a needle inserted through a bore in the needle guide and into tissue on the lateral side of the knee bone, wherein the trajectory is adjusted based on a first distance between a mark on the needle positioned lateral of the bore in the needle guide and a lateral face of the needle guide, the first distance being equal to or less than a second distance between a bone surface on the lateral side of the knee bone and a lateral terminal end of a medial-lateral bone tunnel formed in the knee bone.
14. The method of claim 13 , wherein the knee bone is one of a femur and a tibia.
15. The method of claim 13 , further comprising, prior to positioning the guide block and prior to adjusting the trajectory of the bore extending through the guide block, mating a first end of a medial-lateral arc of the cross pinning guide device to the guide block, a second end of the medial-lateral arc including the needle guide.
16. The method of claim 13 , wherein adjusting the trajectory of the bore extending through the guide block comprises rotating the cross pinning guide device relative to the knee bone about a longitudinal axis of a proximal-distal bone tunnel formed in the knee bone.
17. A surgical method of, comprising:
positioning a guide block of a cross pinning guide device on a medial side of a knee bone and positioning a needle guide of the cross pinning guide device on a lateral side of the knee bone;
adjusting a trajectory of a bore extending through the guide block based on an insertion depth of a needle inserted through a bore in the needle guide and into tissue on the lateral side of the knee bone; and
after adjusting the trajectory of the bore extending through the guide block, advancing a cross pin through the bore extending through the guide block and into a medial-lateral bone tunnel extending into the medial side of the knee bone such that the cross pin intersects a proximal-distal bone tunnel formed in the knee bone.
18. The method of claim 17 , wherein adjusting the trajectory of the bore extending through the guide block comprises rotating the cross pinning guide device relative to the knee bone about a longitudinal axis of the proximal-distal bone tunnel formed in the knee bone.
19. The method of claim 17 , wherein the guide block is mated to a proximal-distal frame of the cross pinning guide device, and adjusting the trajectory of the bore extending through the guide block comprises sliding the guide block along the proximal-distal frame.
20. The method of claim 17 , further comprising determining the insertion depth of the needle based on a position of a mark on the needle relative to the bore in the needle guide.