PATIENT SPECIFIC INSTRUMENTS AND METHODS OF USE
Patient specific instruments, systems and methods for maintaining, correcting and/or resurfacing joint surfaces. A tibia alignment guide including a body with a first surface and a second surface, a base portion coupled to and extending away from the first surface of the body, and a tower portion coupled to and extending away from a top surface of the body.
1 . A resection system, comprising:
a tibia alignment guide including at least one pin for insertion through at least one pin tower;
a tibia trial system comprising at least one through hole for receiving the at least one pin; and
a talus guide.
2 . The resection system of claim 1 , wherein the tibia alignment guide comprises:
a body with a first surface and a second surface;
a base portion coupled to and extending away from the first surface of the body; and
a tower portion coupled to and extending away from a top surface of the body.
3 . The resection system of claim 2 , wherein the second surface of the body is formed to correspond to an exterior surface of a patient's bone.
4 . The resection system of claim 2 , wherein the second surface of the body is formed using medical imaging.
5 . The resection system of claim 4 , wherein the body further comprises:
a medial protrusion extending away from a medial side of the body; and
a lateral protrusion extending away from a lateral side of the body.
6 . The resection system of claim 5 , wherein the medial protrusion comprises:
a first portion extending away from the body in a posterior-medial direction;
a second portion extending away from a distal end of the first portion, wherein the second portion extends in at least a lateral direction from the first portion;
a third portion extending away from the second portion in at least a distal direction; and
a fourth portion extending away from a proximal end of the first portion.
7 . The resection system of claim 6 , wherein the fourth portion tapers as the fourth portion extends away from the first portion to a point.
8 . The resection system of claim 7 , wherein the lateral protrusion comprises:
a first portion extending away from the body in a posterior-lateral direction; and a second portion extending away from a proximal end of the first portion.
9 . The resection system of claim 8 , wherein the second portion of the lateral protrusion tapers as the second portion extends away from the first portion of the lateral protrusion to a point.
10 . The resection system of claim 5 , wherein the medial protrusion comprises:
at least one cutout extending through at least a portion of the medial protrusion.
11 . The resection system of claim 5 , wherein the base portion further comprises:
a fastening system extending away from a bottom surface of the base portion.
12 . The resection system of claim 11 , wherein the fastening system comprises:
a channel extending in an anterior-posterior direction along a bottom surface of the fastening system;
wherein the channel forms a first leg spaced apart from a second leg, wherein the first leg includes a first undercut extending from the channel into the first leg, and wherein the second leg includes a second undercut extending from the channel into the second leg.
13 . The resection system of claim 12 , wherein tower portion further comprises:
at least one pin tower forming at least one through hole extending through at least the tower portion from an anterior surface to a posterior surface of the tower portion; and
at least one elastic region positioned along a length of the tower portion.
14 . The resection system of claim 13 , wherein the at least one pin tower comprises:
a first pin tower positioned near a first end of the alignment guide; and
a second pin tower positioned between the first pin tower and the body.
15 . The resection system of claim 14 , wherein the alignment guide further comprises:
an alignment tower coupled to and extending away from a superior surface of the tower portion, wherein the alignment tower comprises:
at least one protrusion with an opening extending into the at least one protrusion from a first end of the alignment guide toward the tower portion.
16 . The resection system of claim 15 , wherein the at least one protrusion comprises:
a first protrusion; and
a second protrusion;
wherein the protrusions are positioned aligned in an anterior-posterior direction, and wherein the protrusions at least partially overlap.
17 . The resection system of claim 16 , wherein the base portion further comprises:
a slot extending into the base portion from an anterior surface of the base portion, wherein the slot is configured to receive a coupling member of a laser.
18 . The resection system of claim 17 , further comprising:
at least one coupling member extending away from at least one of a medial side and a lateral side of the tower portion at a proximal end.
19 . The resection system of claim 18 , wherein the at least one coupling member curves in a posterior direction as the at least one coupling member extends away from the tower portion.
20 . The resection system of claim 19 , further comprising:
an alignment tool for insertion into at least one through hole of the tower portion.