Motion toe systems and methods

1. A surgical method for implanting a prosthesis into a first bone located on a first side of a metatarsophalangeal joint of a patient, comprising the steps of:

a) accessing the metatarsophalangeal joint through a surgical incision;

b) placing a surgical guide tool against an articulating surface of the first bone, the surgical guide tool having a plurality of different guide trialing surfaces, the surgical guide tool including at least one opening formed therethrough to accommodate a guide pin;

c) inserting the guide pin through the at least one opening and into an intramedullary channel within the first bone to create a first passage,

d) removing at least a portion of the articulating surface from the first bone to create a resected surface;

e) drilling the intramedullary channel to increase the size of the first passage;

f) inserting a trial prosthesis into the drilled first passage and check for fit and final resting position of a permanent prosthesis;

g) creating a plurality of elongated grooves within an outer wall of the first passage; and

h) placing a base portion of the permanent prosthesis within the first passage, the base portion having a plurality of anchoring wings complementary to size and shape of the plurality of elongated grooves, the anchoring wings being positioned within the plurality of elongated grooves, the prosthesis including a contacting surface which abuts against the resected surface,

wherein each of the guide trialing surfaces comprises a substantially planar sizing paddle with a size, shape, and angulation configured to identify the correct size and shape of the base portion of the prosthesis and a desired proper alignment of the prosthesis, wherein said at least one opening is formed through the sizing paddle, and

wherein each of the guide trialing surfaces further comprises a guide stem extending perpendicular from the sizing paddle and sized and configured to rest on top of the first bone and line up/down relative to the shaft of the first bone, wherein said guide stem comprises an alignment opening formed therethrough to accommodate a dorsal cortex pin,

wherein the first bone is one of a metatarsal bone or a phalanx bone.

2. The surgical method of claim 1 , wherein at least some portion of the contacting surface includes a bone in-growth surface.

3. The surgical method of claim 2 , wherein the base portion does not incorporate a bone in-growth surface.