Ankle replacement system and method
AssigneeWright Medical Technologies, Inc.
InventorsRamon Luna, Murray Penner
Life of this patent
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Abstract
Surgical methods for multi-component ankle prosthesis are provided that include use of a guide arm, a ratchet arm frame configured to be coupled slidably to the guide arm, a ratchet arm configured to be coupled to the ratchet arm frame, and a sagittal sizing guide body configured to be coupled to the ratchet arm. Methods including a sagittal sizing guide body include positioning a first radiopaque object at a first position and a second radiopaque object located at a second position that is spaced apart from the first position.
Claims21
A method, comprising:
- inserting an elongate body of a spacer into a channel defined by a trial comprising a patient-specific adapter that is positioned within a resected first bone;
- inserting first and second pins through first and second holes defined by an extension of the spacer that extends superiorly from the elongate body;
- removing the spacer and the trial while leaving the first and second pins positioned within the second bone;
- and
- sliding a cutting guide over the first and second pins.
A method, comprising:
- inserting a floating trial into a resected joint space between a first bone and a second bone;
- inserting a poly trial insert into the resected joint space, the poly trial insert comprising a concave surface, wherein the floating trial is sized and configured to articulate with the concave surface of the poly insert;
- moving the floating trial to a location corresponding to a desired articulation of the floating trial with the poly trial insert;
- inserting a plurality of fixation pins through a plurality of pin holes defined by the floating trial;
- removing the floating trial and the poly trial insert from the resected joint space;
- and
- forming at least two resectioning cuts on the second bone.
A method, comprising:
- coupling a drill guide to a first bone, wherein the drill guide comprises a plurality of guide holes;
- forming a plurality of pilot holes in the first bone through the plurality of guide holes of the drill guide, wherein the pilot holes define proximal corners of a resection cut to be made in the first bone;
- removing the drill guide from the first bone;
- coupling a cutting guide to the first bone, wherein the cutting guide defines at least two slots for guiding a surgical tool to form one or more resectioning cuts;
- cutting the one or more resectioning cuts to form a resectioned joint space between the first bone and a second bone;
- inserting a first trial into the resectioned joint space, wherein the first trial is seated flush against the first bone, and wherein the first trial is removably coupled to the first bone;
- and
- performing a trial reduction to determine a height and a position of one or more implants.
A method, comprising:
- coupling a plurality of guide pins to a first bone, the plurality of guide pins coupled to the first bone using a patient-specific adapter;
- coupling a floating trial to the plurality of guide pins
- inserting the floating trial into a resected joint space between the first bone and a second bone;
- inserting a poly trial insert into the resected joint space, the poly trial insert comprising a concave surface, wherein the floating trial is sized and configured to articulate with the concave surface of the poly insert;
- and
- moving the floating trial to a location corresponding to a desired articulation of the floating trial with the poly trial insert.
Dependencies are inferred from the claim text.