Contour guide for small bone surface modification
A method of modifying a bone surface for receiving an implant includes: positioning a contour guide at a first bone and a second bone and across a separation between the first bone and the second bone; using the contour guide to modify a surface region of at least one of the first bone and the second bone to form a modified surface region at one or both of the first bone and the second bone; and positioning an implant in contact at least with the modified surface region.
1 . A method of modifying a bone surface for receiving an implant, the method comprising:
positioning a contour guide at a first bone and a second bone and across a separation between the first bone and the second bone;
using the contour guide to modify a surface region of at least one of the first bone and the second bone to form a modified surface region at one or both of the first bone and the second bone where a bridge of an implant is configured to be positioned;
positioning the bridge of the implant in contact at least with the modified surface region.
2 . The method of claim 1 ,
wherein using the contour guide to modify the surface region of at least one of the first bone and the second bone comprises using the contour guide to modify a first surface region at the first bone to form a modified first surface region along the first bone and a second surface region at the second bone to form a modified second surface region along the second bone, and
wherein positioning the implant in contact at least with the modified surface region comprises placing the implant in contact with each of the modified first surface region and the modified second surface region.
3 . The method of claim 2 ,
wherein the implant has an implant length,
wherein the modified first surface region and the modified second surface region define a modified bone surface length along the first bone and the second bone, and
wherein the modified bone surface length is equal to or greater than the implant length.
4 . The method of claim 3 , wherein the implant is placed in contact with each of the modified first surface region and the modified second surface region and with the implant bridging the separation between the first bone and the second bone.
5 . The method of claim 1 ,
wherein the implant is a staple,
wherein the first bone is a metatarsal, the second bone is a cuneiform, and the separation between the first bone and the second bone is a joint space between the metatarsal and the cuneiform, and
wherein positioning the implant in contact at least with the modified surface region comprises placing a first leg of the staple through the modified first surface region at the metatarsal and placing a second leg of the staple through the modified second surface region at the cuneiform.
6 . The method of claim 1 , wherein using the contour guide to modify the surface region of at least one of the first bone and the second bone to form the modified surface region at one or both of the first bone and the second bone comprises positioning a bone surface modification instrument at the contour guide and in contact with the surface region of at least one of the first bone and the second bone.
7 . The method of claim 6 , wherein the bone surface modification instrument, placed at the contour guide and in contact with the surface region of at least one of the first bone and the second bone, is configured to break up bone at the surface region of at least one of the first bone and the second bone.
8 . The method of claim 6 , wherein the bone surface modification instrument, positioned at the contour guide and in contact with the surface region of at least one of the first bone and the second bone, comprises at least one of a burr and a saw.
9 . The method of claim 1 ,
wherein the contour guide comprises a contour guide body having a top side and a bottom side,
wherein the bottom side includes a guide slot that defines a guide slot cross-sectional area that is greater than a cross-sectional area of the implant, and
wherein positioning the contour guide comprises positioning the bottom side of the contour guide at the first bone and the second bone and across the separation between the first bone and the second bone.
10 . The method of claim 9 , wherein positioning the bottom side of the contour guide at the first bone and the second bone and across the separation between the first bone and the second bone comprises positioning the guide slot over the first bone and the second bone and across the separation between the first bone and the second bone.
11 . The method of claim 10 ,
wherein the contour guide body comprises a guide aperture, and
wherein using the contour guide to modify the surface region of at least one of the first bone and the second bone to form the modified surface region at one or both of the first bone and the second bone comprises placing a bone surface modification instrument at least partially in the guide aperture, at least partially in the guide slot, and in contact with the surface region of at least one of the first bone and the second bone.
12 . The method of claim 11 ,
wherein the guide aperture is aligned with the guide slot, and,
when the contour guide is positioned at the first bone and the second bone and across the separation between the first bone and the second bone, the bone surface modification instrument is first inserted through the guide aperture, then inserted through the guide slot, and then placed in contact with the surface region of at least one of the first bone and the second bone to modify the surface region of at least one of the first bone and the second bone.
13 . The method of claim 1 , further comprising:
positioning an implant guide sleeve at the first bone and the second bone and across the separation between the first bone and the second bone, wherein the contour guide is positioned at the first bone and the second bone and across the separation between the first bone and the second bone using the implant guide sleeve.
14 . The method of claim 13 , further comprising:
prior to positioning the contour guide at the first bone and the second bone and across the separation between the first bone and the second bone using the implant guide sleeve, fixating the implant guide sleeve at the first bone and the second bone.
15 . The method of claim 13 , wherein using the contour guide to modify the surface region of at least one of the first bone and the second bone to form the modified surface region at one or both of the first bone and the second bone comprises using the contour guide to modify the surface region while the contour guide is positioned at least partially within the implant guide sleeve.
16 . The method of claim 13 , wherein, after positioning the contour guide using the implant guide sleeve and after using the contour guide to modify the surface region of at least one of the first bone and the second bone to form the modified surface region at one or both of the first bone and the second bone, advancing an inserter, operatively connected to the implant, relative to the implant guide sleeve to place the implant in contact at least with the modified surface region.