Total joint arthroplasty jig
AssigneeHowmedica Osteonics Corp.
InventorsIlwhan Park, Michael Koehle, Lorenzo R. Deveza
Life of this patent
Estimating the term…
Abstract
Disclosed herein is an arthroplasty jig for use in an arthroplasty procedure on a bone of a patient that forms a ball and socket joint. The arthroplasty jig may include a customized mating region and a resection guide. The customized mating region and the resection guide are referenced to each other such that, when the customized mating region matingly engages a surface area of a proximal femur, the resection guide will be aligned to guide a resectioning of the proximal femur along a preoperatively planned resection plane.
Claims14
An arthroplasty jig for use in performing an arthroplasty procedure on a bone of a patient, the bone forming a portion of a ball and socket joint, the bone comprising a head having an articular surface that is bounded by a neck border, a non-articular surface extending distally from the neck border, and a tubercle formed on non-articular surface of the bone, the arthroplasty jig comprising:
- a jig body comprising:
- a first mating surface defined on a bone facing side of the jig body, the first mating surface configured to matingly contact the non-articular surface of the bone in a first location in a customized fashion unique to the patient when the jig body is applied to the bone to perform the arthroplasty procedure;
- a second mating surface defined on the bone facing side of the jig body, the second mating surface configured to matingly contact the non-articular surface of the bone in a second location in a customized fashion unique to the patient when the jig body is applied to the bone to perform the arthroplasty procedure;
- a spaced-apart surface defined on the bone facing side of the jig body and separating the first mating surface and the second mating surface, the spaced-apart surface configured to be recessed from contact with the tubercle when the first and second mating surface matingly contact the first and second locations on the non-articular surface, respectively;
- and
- a saw guide configured to guide a saw in making a resection of the bone, the saw guide extending through the jig body and comprising a preoperatively planned position and orientation relative to the first and second mating surfaces.
Dependencies are inferred from the claim text.