Apparatus, system, and method for patient-specific methods and instrumentation

A system for remediating a condition present in a patient's foot, the system comprising:

• a set of proximal guide pins;
• a set of distal guide pins;
• a navigation guide comprising:
• a proximal end;
• a distal end;
• a body between the proximal end and the distal end, the body comprising:
• a superior side, an inferior side, a medial side, a lateral side, a proximal side, and a distal side;
• a set of proximal bone attachment features configured to identify a location for a proximal reference feature on a cuneiform of the patient's foot that corresponds to a proximal model reference on a cuneiform model of the cuneiform and to receive the set of proximal guide pins that define the proximal reference feature;
• a set of distal bone attachment features configured to identify a location for a distal reference feature on a metatarsal of the patient's foot that corresponds to a distal model reference on a metatarsal model of the metatarsal and to receive the set of distal guide pins that define the distal reference feature;
• wherein the set of distal bone attachment features comprise a plurality of sets of distal bone attachment features, each set of distal bone attachment features configured to be positioned radially about a long axis of the metatarsal at a different angle relative to the set of proximal bone attachment features;
• wherein the set of proximal guide pins serve as a proximal resection guide anchor and as a proximal alignment feature and the set of distal guide pins serve as a distal resection guide anchor and as a distal alignment feature;
• a registration key on the inferior side of the body, the registration key comprising a protrusion configured to engage both the cuneiform and the metatarsal near a foot joint;
• a proximal resection guide configured to engage the set of proximal guide pins, the proximal resection guide comprising a cuneiform resection feature configured to guide resection of the cuneiform to form a cut face of the cuneiform for a correction of a condition present in a patient's foot;
• a distal resection guide configured to engage the set of distal guide pins, the distal resection guide comprising a metatarsal resection feature configured to guide resection of the metatarsal to form a cut face of the metatarsal for the correction of the condition present in the patient's foot;
• and
• a positioning guide configured to engage the proximal alignment feature and the distal alignment feature as the positioning guide is deployed, the positioning guide configured to translate and rotate the metatarsal such that the cut face of the metatarsal contacts the cut face of the cuneiform.