Bone positioning and cutting system and method
A bone positioning device can include a fixation pin for attachment to a first bone and a fixation pin for attachment to a second bone. A first block having an aperture can be included for slidably receiving a fixation pin, and a second block having an aperture can be included for slidably receiving a fixation pin. A multi-axis joint can connect the first block and the second block, where the multi-axis joint allows the first second blocks to move with respect to each other about more than one axis.
1. A method comprising:
attaching a bone positioning device to a metatarsal and a cuneiform by at least:
attaching a first fixation pin to a metatarsal;
attaching a second fixation pin to a cuneiform;
positioning a first block along and about the first fixation pin;
actuating a first set screw to fix a position of the first block along and about the first fixation pin;
positioning a second block along and about the second fixation pin;
actuating a second set screw to fix a position of the second block along and about the second fixation pin;
adjusting the position of the first block with respect to the second block about at least a first axis and a second axis; and
actuating a third set screw and a fourth set screw to fix a position about the first axis and the second axis;
cutting a portion of the metatarsal facing a metatarsal-cuneiform joint;
cutting a portion of the cuneiform facing the metatarsal-cuneiform joint;
after cutting the portion of the metatarsal and cutting the portion of the cuneiform, actuating a compression screw of the bone positioning device to apply a compression force between the metatarsal and the cuneiform; and
attaching a bone connector to fix the position of the metatarsal and the cuneiform.
2. The method of claim 1 , further including the step of imaging the metatarsal connected to the first block and the cuneiform connected to the second block.
3. The method of claim 1 , wherein:
cutting the portion of the metatarsal comprises positioning a cutting guide proximate a leading edge of the metatarsal and cutting the metatarsal with a cutting tool guided by the cutting guide, and
cutting the portion of the cuneiform comprises positioning the cutting guide proximate a leading edge of the cuneiform and cutting the cuneiform with the cutting tool guided by the cutting guide.
4. The method of claim 1 , further including the step of removing the first fixation pin from the metatarsal and the second fixation pin from the cuneiform after attaching the bone connector to the metatarsal and the cuneiform.
5. The method of claim 1 , wherein the metatarsal is a first metatarsal and the cuneiform is a first cuneiform.
6. The method of claim 1 , wherein the bone connector comprises at least one of a plate, a pin, a screw, a wire, and a staple.
7. The method of claim 1 , wherein cutting the portion of the metatarsal and cutting the portion of the cuneiform comprises cutting the portion of the metatarsal with a saw blade and cutting the portion of the cuneiform with the saw blade.
8. The method of claim 1 , wherein the bone positioning guide comprises a multi-axis joint, and actuating the third set screw and the fourth set screw comprises actuating the third set screw to bear against a first portion of the multi-axis joint and actuating the fourth set screw to bear against a second portion of the multi-axis joint.