Methods and devices for treating a structural bone and joint deformity
The various embodiments disclosed herein relate to implantable devices for the treatment of a structural bone and deformity. More specifically, the various embodiments include systems, devices, and methods for implantation of a flexible or tension band for treating such a deformity, including hallux valgus.
1. A method of treating a bone deformity comprising:
positioning a drill guide against a first bone;
coupling a tension band guide having a receiving track to the drill guide;
drilling a hole through the first bone;
inserting an implantation cannula through the drill guide and the hole in the first bone;
inserting a tension band through the implantation cannula and into contact with the tension band guide such that the tension band is urged through the hole in the first bone, around a second bone via the tension band guide, and back through the hole in the first bone; and
locking the tension band in place with a locking mechanism wherein the step of inserting a tension band includes
inserting a first end of a leader component through the implantation cannula and into contact with the receiving track, wherein a second end of the leader component is coupled to the tension band;
urging the first end of the leader component against the receiving track such that the first end of the leader component is redirected by the receiving track upward on the side of the second bone that is opposite the first bone;
urging the first end of the leader component over the second bone in a direction toward the first bone and through the hole in the first bone;
pulling the first end of the leader component through the hole in the first bone such that the tension band is urged through the hole in the first bone, around the second bone, and back through the hole in the first bone; and
detaching the leader component from the tension band.
2. The method of claim 1 , wherein the first bone is a first metatarsal bone and the second bone is a second metatarsal bone.
3. The method of claim 2 , further comprising locking the tension band such that the tension band is under tension, whereby the tension band causes a reduction in an intermetatarsal angle.
4. The method of claim 1 , wherein coupling the tension band guide to the drill guide further comprises positioning a receiving track adjacent to a second bone and on a side of the second bone that is opposite the first bone.
5. The method of claim 1 , wherein inserting the implantation cannula further comprises positioning the implantation cannula into contact with an underside of the second bone.
6. The method of claim 1 , wherein the tension band is elastic.
7. The method of claim 1 , wherein the tension band is a flexible band.