CPC A61B 34/10 (2016.02) [A61B 17/151 (2013.01); A61B 17/1775 (2016.11); A61B 2017/00526 (2013.01); A61B 2017/568 (2013.01); A61B 2034/108 (2016.02)] | 19 Claims |
1. A patient-specific instrument for performing an osteotomy on a patient, the patient-specific instrument comprising:
a body comprising:
a proximal side, a distal side, a medial side, a lateral side and a superior side;
an inferior side comprising a bone engagement surface comprising four recesses, each of the four recesses shaped to conform to one of a first surface of a first bone, a second surface of a second bone, a third surface of a third bone, and a fourth surface of a fourth bone of adjacent joints of the patient; and
one or more guide features that together, with the bone engagement surface overlying both the adjacent joints, are positioned to guide resection of at least one of the first bone, the second bone, the third bone, and the fourth bone during the osteotomy;
at least one anchor feature coupled to the body and configured to receive one or more fasteners to anchor the body to one or more of the bones of the adjacent joints of the patient; and
wherein the body is configured to seat transverse to the adjacent joints with the bone engagement surface engaging the first surface, the second surface, the third surface, and the fourth surface of the bones.
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