Bone positioning guide
A bone positioning guide may include a main body member, a shaft, and a bone engagement member. The shaft can be movably connected to the main body member and have the bone engagement member rotatably coupled to its distal end. The bone engagement member can have a surface configured to engage a bone. The main body member can also include a tip opposite the bone engagement member for engaging a second bone. In use, the bone engagement member may be positioned in contact with a medial side of a first metatarsal while the tip is positioned in contact with a lateral side of a different metatarsal, such as a second metatarsal. The shaft can then be moved to advance the bone engagement member toward the tip, causing realignment of the first metatarsal.
1. A bone positioning guide comprising:
a bone engagement member;
a tip;
a mechanism configured to urge the bone engagement member and the tip towards each other; and
an actuator configured to actuate the mechanism, wherein actuating the mechanism is configured to cause a first bone engaged with the bone engagement member to move to correct an alignment of the first bone in more than one plane with respect to a second bone in contact with the tip, including about an axis in a frontal plane.
2. The bone positioning guide of claim 1 , wherein
the mechanism comprises a main body and a shaft movably connected to the main body proximate a first end of the main body;
the bone engagement member is rotatably coupled to the shaft; and
the tip is at a second end of the main body opposite the first end.
3. The bone positioning guide of claim 2 , wherein the first end of the main body is laterally offset from an axis extending through the shaft and a geometric center of the bone engagement member.
4. The bone positioning guide of claim 2 , wherein the actuator is a knob coupled to the shaft.
5. The bone positioning guide of claim 2 , wherein the shaft is threaded.
6. The bone positioning guide of claim 2 , wherein the shaft includes a cannulation.
7. The bone positioning guide of claim 1 , wherein the tip includes a textured surface.
8. The bone positioning guide of claim 1 , wherein the tip is tapered.
9. The bone positioning guide of claim 1 , wherein the tip further includes a stop to limit a depth of insertion.
10. The bone positioning guide of claim 1 , wherein the tip is nonlinear.
11. The bone positioning guide of claim 1 , wherein the bone engagement member has a concave surface configured to engage the bone.
12. The bone positioning guide of claim 11 , wherein the concave surface is V-shaped.
13. The bone positioning guide of claim 11 , wherein the concave surface is formed by a pair of sidewalls, and the pair of sidewalls are asymmetric with respect to each other.
14. The bone positioning guide of claim 1 , wherein the bone engagement member is configured to engage with a medial ridge of a first metatarsal of a human foot.
15. The bone positioning guide of claim 1 , wherein the bone positioning guide is fabricated from radiolucent material.
16. The bone positioning guide of claim 1 , wherein the bone engagement member is laterally offset from the tip.