Patient-matched instrumentation and methods
AssigneeSmith & Nephew, Inc.
InventorsZachary Christopher Wilkinson, Brian W. McKinnon, David Timothy Mehl, Luke Andrew Gibson, Scott Kennedy Laster
Life of this patent
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Abstract
A patient-matched cutting block including a surface or point contact features adapted to at least partially conform to or reference a patient specific anatomy. The cutting block having guide slots configured for guiding the movement of cutting tools relative to the patient specific anatomy or features configured to mate to and guide standard cutting guides relative to patient specific anatomy in order to form plateau and eminence resections of the patient specific anatomy.
Claims21
-15. (canceled)
A patient matched tibial cutting block, comprising:
- a surface or point contact feature adapted to at least partially conform to or reference a patient specific anatomy wherein a patient specific surface is established in pre-surgical planning based on imaging data of the patient specific anatomy;
- and
- a plurality of eminence-preserving guide slots and a plurality of plateau guide slots, wherein the guide slots are configured for guiding movement of cutting tools relative to the patient specific anatomy.
A patient specific tibial cutting guide, comprising:
- a central portion configured to at least partially overlay anterior and superior portions of a proximal tibia;
- a plurality of outrigger portions extending from the central portion and configured to at least partially overlay medial and lateral articulation surfaces of the proximal tibia;
- and
- a plurality of wing portions extending medially and laterally from the central portion and configured to extend at least partially around medial and lateral sides of an anterior face of the proximal tibia, wherein the central portion and the plurality of outrigger portions define guides configured for guiding a cutting tool to form vertical and anterior eminence-preserving resections of the proximal tibia and the plurality of wing portions define guide slots for guiding a cutting tool to form horizontal plateau resections of the proximal tibia.
A method of resectioning a proximal tibia, comprising:
- securing a patient matched instrument to a patient's proximal tibia;
- and
- using the patient matched instrument to guide one or more cutting guides relative to the proximal tibia to form at least one of a medial and lateral vertical eminence-preserving resection and an anterior vertical eminence-preserving resection.
Dependencies are inferred from the claim text.