Bone repositioning guide system and procedure
An improved surgical system and procedure for correcting a deformity between first and second bones using an alignment guide based on a correction factor. The correction factor can be based on a virtual model of the first and second bones in a deformed configuration and a corrected configuration. In the virtual corrected configuration, first and second virtual axes can be fixed in the respective first and second bones. When reverted to the virtual deformed configuration, the orientation of the first and second axes can be used to determine the correction factor. The alignment guide is used to insert one or more k-wires into each of the first and second bones in a deformed configuration. A correction guide is passed along the k-wires to rotate and/or translate the first bone relative to the second bone into the corrected configuration.
1. A method for correcting alignment between a first bone and a second bone by fusing a joint between the first bone and the second bone, the method comprising:
aligning a first end portion of a first guide with the first bone, the first end portion having a first cannula and a second cannula, the first and second cannula aligned in a first direction;
inserting a first k-wire through the first cannula and into the first bone and a second k-wire through the second cannula and into the first bone;
resecting a first end of the first bone through a slot to form a first resected face, the slot aligned with the first end of the first bone by the first and second k-wires;
inserting a third k-wire and a fourth k-wire through the first guide into the second bone;
resecting a first end of the second bone to form a second resected face;
sliding a second guide over the first, second, third and fourth k-wires, the second guide adjusting a positioning of the first and second bones such that the first and second resected faces abut in a corrected configuration; and
fixing the first and second bones in the corrected configuration;
wherein fixing the first and second bones in the corrected configuration includes attaching a first end of a bone plate with the first bone and a second end of the bone plate with the second bone such that the first and second bones are retained in the corrected configuration.
2. The method of claim 1 , wherein fixing the first and second bones in the corrected configuration includes inserting a stabilizing wire into the first and second bones.
3. The method of claim 1 , wherein sliding the second guide over the first, second, third and fourth k-wires translates the first resected face towards the second resected face.
4. The method of claim 1 , wherein sliding the second guide over the first, second, third and fourth k-wires rotates the first bone relative to the second bone to adjust an alignment therebetween.
5. The method of claim 1 , wherein the third k-wire and the fourth k-wire are inserted into the second bone through a second end portion of the first guide including a third cannula and a fourth cannula, the third and fourth cannula aligned in a second direction.
6. The method of claim 1 , wherein the first end of the second bone is resected through the slot, the slot being aligned with the first end of the second bone by the third and fourth k-wires.
7. The method of claim 1 , wherein the slot is on a resection guide including first and second apertures configured to align with the first and second k-wires.
8. The method of claim 1 , wherein the first bone is a metatarsal, the second bone is a medial cuneiform bone and the corrected configuration of the first and second bones corrects a bunion.
9. The method of claim 1 , wherein the second guide adjusts an angle of the first bone in three orthogonal planes between a deformed configuration and the corrected configuration.
10. The method of claim 1 , wherein after resecting the first end of the second bone to form the second resected face, the method includes removing the first guide from the first and second k-wires.
11. A method for correcting alignment between a first bone and a second bone by fusing a joint between the first bone and the second bone, the method comprising:
aligning a first end portion of a first guide with the first bone, the first end portion having a first cannula and a second cannula, the first and second cannula aligned in a first direction;
inserting a first k-wire through the first cannula and into the first bone and a second k-wire through the second cannula and into the first bone;
resecting a first end of the first bone through a slot to form a first resected face, the slot aligned with the first end of the first bone by the first and second k-wires;
inserting a third k-wire and a fourth k-wire through the first guide into the second bone;
resecting a first end of the second bone to form a second resected face;
sliding a second guide over the first, second, third and fourth k-wires, the second guide adjusting a positioning of the first and second bones such that the first and second resected faces abut in a corrected configuration; and
fixing the first and second bones in the corrected configuration;
wherein after fixing the first and second bones in the corrected configuration, the method includes removing the second guide and the first, second, third, and fourth k-wires from the first and second bones.
12. The method of claim 11 , wherein fixing the first and second bones in the corrected configuration includes inserting a stabilizing wire into the first and second bones.
13. The method of claim 11 , wherein sliding the second guide over the first, second, third and fourth k-wires translates the first resected face towards the second resected face.
14. The method of claim 11 , sliding the second guide over the first, second, third and fourth k-wires rotates the first bone relative to the second bone to adjust an alignment therebetween.
15. The method of claim 11 , the third k-wire and the fourth k-wire are inserted into the second bone through a second end portion of the first guide including a third cannula and a fourth cannula, the third and fourth cannula aligned in a second direction.
16. The method of claim 11 , the first end of the second bone is resected through the slot, the slot being aligned with the first end of the second bone by the third and fourth k-wires.
17. The method of claim 11 , the slot is on a resection guide including first and second apertures configured to align with the first and second k-wires.
18. The method of claim 11 , the first bone is a metatarsal, the second bone is a medial cuneiform bone and the corrected configuration of the first and second bones corrects a bunion.
19. The method of claim 11 , wherein the second guide adjusts an angle of the first bone in three orthogonal planes between a deformed configuration and the corrected configuration.
20. The method of claim 11 , after resecting the first end of the second bone to form the second resected face, the method includes removing the first guide from the first and second k-wires.