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US 11,590,001 B2Granted
Anterior ankle approach system and method
AssigneeWright Medical Technology, Inc.
InventorsRamon Luna, Meghan Kubacki, Terrance W. Strohkirch
Life of this patent
Estimating the term…
Abstract
A method of ankle replacement includes forming an anterior cut in a bone and forming a stem hole in a distal end of the bone. The stem hole is formed using a plurality of broaches positioned against the distal end of the bone through the anterior cut. A first portion and a second portion of a stem implant are inserted into the stem hole through the anterior cut in the bone. The first portion is coupled to the second portion using a coupling device inserted through the anterior cut in the bone. The stem implant is impacted into the stem hole using an offset impactor.
Claims34
A method of ankle replacement, comprising:
- forming an anterior cut in a bone;
- forming a stem hole in a distal end of the bone using a plurality of broaches positioned against the distal end of the bone through the anterior cut;
- inserting a first portion of a stem into the stem hole through the anterior cut in the bone;
- inserting a second portion of the stem into the stem hole through the anterior cut in the bone;
- coupling the first portion to the second portion using a coupling device inserted through the anterior cut in the bone;
- and
- impacting the stem implant into the stem hole by applying an impaction force to an offset impactor, wherein the offset impactor comprises a body including a longitudinal section having a first transverse arm coupled to a first end and a second transverse arm coupled to a second end, wherein the first transverse arm and the second transverse arm define a space therebetween;
- an impactor surface configured to be coupled to the first transverse arm, the impactor surface configured to receive the impaction force;
- and
- an impactor body configured to be coupled to the second transverse arm, wherein the impaction force is transferred from the first transverse arm to the second transverse arm by the longitudinal section, wherein the offset impactor is configured to convert the impaction force to a linear impaction force.
7 more elements
A method, comprising:
- forming an anterior cut in a bone;
- coupling a first broach to an offset impactor, the offset impactor including
- a body including a longitudinal section having a first arm coupled to a first end and a second arm coupled to a second end such that a space is defined between the first arm and the second arm;
- an impactor surface coupled to the first arm;
- and
- an impactor body coupled to the second arm,
- forming a first hole in the bone by applying a first impaction force to the impactor surface;
- replacing the first broach with a second broach;
- forming a stem hole in the bone by applying a second impaction force to the impactor surface;
- inserting a first portion of a stem into the stem hole through the anterior cut in the bone;
- inserting a second portion of the stem into the stem hole through the anterior cut in the bone;
- coupling the first portion to the second portion using a coupling device inserted through the anterior cut in the bone;
- and
- impacting a stem implant into the stem hole by applying a third impaction force to the impactor surface of the offset impactor.
11 more elements
A method, comprising:
- forming an anterior cut in a first bone;
- forming a stem hole in a distal end of the first bone using a plurality of broaches positioned against the distal end of the first bone through the anterior cut;
- inserting a first portion of a stem into the stem hole through the anterior cut in the first bone;
- inserting a second portion of the stem into the stem hole through the anterior cut in the first bone;
- coupling the first portion to the second portion using an offset driver inserted through the anterior cut in the bone, the offset driver including:
- an elongate body extending from a first end to a second end and defining a longitudinal axis;
- and
- a driver head disposed at the second end of the elongate body, the driver head including a bit drive configured to be received in a space between the first bone and a second bone and to engage the second portion of the stem, the driver head configured to rotate about an axis that is disposed an angle with respect to the longitudinal axis defined by the elongate body;
- and
- impacting the stem implant into the stem hole by applying an impaction force to an offset impactor.
7 more elements
Dependencies are inferred from the claim text.