Metatarsophalangeal joint implants and methods thereof

A method for disposing an implant at least partially into a metatarsal bone in a metatarsophalangeal joint, the method comprising the steps of:

• disposing a recess through an articular surface of a metatarsal head of the metatarsal bone such that the metatarsal head maintains articulation with a sesamoid bone;
• and
• inserting the implant into the metatarsal bone at an angle between 15-30 degrees with respect to a longitudinal axis of the metatarsal bone;
• and
• inserting a trial implant into the recess to visually inspect a relative location of the articular surface and the trial implant;
• wherein the trial implant comprises a defined etched band disposed along a circumference of the trial implant.

A method for disposing an implant at least partially into a metatarsal bone in a metatarsophalangeal joint, the method comprising the steps of:

• disposing a recess through an articular surface of a metatarsal head of the metatarsal bone such that the metatarsal head maintains articulation with a sesamoid bone;
• and
• inserting the implant into the metatarsal bone at an angle between 15-30 degrees with respect to a longitudinal axis of the metatarsal bone;
• wherein the metatarsal head comprises at least 2 mm of bone surrounding the recess;
• wherein the recess is formed by contacting a distal end of a drill bit with the articular surface of the metatarsal head of the metatarsal bone, and wherein the method further comprises the steps of:
• forming a first cavity of the recess with a first drill bit portion having a first drill bit diameter about equal to a diameter of the post portion of the implant;
• and
• forming a second cavity of the recess with a second drill bit portion having a second drill bit diameter about equal to a diameter of the head portion of the implant, wherein a distal end of the first drill bit portion extends distally from a distal end of the second drill bit portion, and wherein the first drill bit diameter is smaller than the second drill bit diameter.

A method for disposing an implant at least partially into a metatarsal bone in a metatarsophalangeal joint, the method comprising the steps of:

• disposing a recess through an articular surface of a metatarsal head of the metatarsal bone such that the metatarsal head maintains articulation with a sesamoid bone;
• and
• inserting the implant into the metatarsal bone at an angle between 15-30 degrees with respect to a longitudinal axis of the metatarsal bone;
• wherein the metatarsal head comprises at least 2 mm of bone surrounding the recess;
• further wherein the implant comprises a post extension having a first end configured to be at least partially disposed in the metatarsal bone and a second end configured to couple with a cavity within the post portion.