Ankle replacement system and method
AssigneeWright Medical Technology, Inc.
InventorsShawn E. McGinley, Robert M. Howles, Braham K. Dhillon, Gary W. Lowery
Life of this patent
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Abstract
Various surgical devices and methods are disclosed herein. Also disclosed is multi-component prosthesis, which can be used as an ankle prosthesis. One of the disclosed surgical alignment systems includes 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. The sagittal sizing guide body includes a first radiopaque object disposed at a first position and a second radiopaque object disposed at a second position that is spaced apart from the first position.
Claims16
1-49. (canceled)
A method, comprising:
- coupling an insertion device to a first implant component disposed within a joint;
- pushing a plunger rod of the insertion device axially, such that the plunger rod slides through a hole defined by a body of the insertion device and though an aperture defined by a locking buttion that is slidably received within a locking protrusion that extends from the body of the insertion device, to advance a second implant component along the body of the insertion device between a pair of spaced apart rails until a threaded portion of the plunger rod contacts a threaded hole defined by a handle of the insertion device;
- and
- rotating a handle of the plunger rod relative to the body of the insertion device such that threads of the threaded portion of the plunger rod engage threads of the threaded hole to advance the second implant component into engagement with the first implant component 51.
A method comprising:
- placing a guide having a patient-specific surface on a first bone, the guide including a pin holder that engages a pin that extends in a direction that is parallel to an axis of the first bone;
- inserting a plurality of pins into the guide;
- sliding the guide along the plurality of pins to remove the guide from contacting the first bone;
- sliding a conversion instrument over a first subset of the plurality of pins;
- sliding a sizing and drill guide over a second subset of the plurality of pins;
- and
- coupling the conversion instrument to the sizing and drill guide by inserting a dovetail extension of the sizing and drill guide into a cavity of a dovetail joint of the conversion instrument.
A surgical system, comprising:
- a trial configured to be received within a resected first bone, the trial including a plate having a bottom surface defining a channel;
- and
- a spacer having an elongate body and an extension disposed at one end thereof, the elongate body sized and configured to be received within channel defined by the trial, the extension defining at least first and second holes that are configured to receive first and second pins positioned within a second bone.
The surgical system of claim 60, wherein the first bone is a tibia and the second bone is a talus.
61-65. (canceled)
Dependencies are inferred from the claim text.