Intramedullary implant with proximal plate and method for its use
AssigneeWright Medical Technology, Inc.
InventorsDavid B. Kay, Anthony Perera, Bryan Den Hartog, Dustin Ducharme
Life of this patent
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Abstract
An orthopedic implant is specifically configured for use in osteotomies, in which part of the implant extends into an intramedullary portion of a first bone segment and a plate portion is external to the cortical surface of an adjacent bone segment to fix the segments to allow them to fuse. The body of the implant has a first end and a second end where the end which is inserted into the bone has a chamfer and a through hole having a hole axis optionally at an oblique angle to the longitudinal axis of the implant, and which can receive a screw, peg or pin. The second end of the implant includes a plate portion with at least two offset screws.
Claims27
A system for use in a long bone osteotomy surgical procedure comprising:
- at least two plates, each plate defining one or more through holes suitable for accepting a fastener;
- and
- a body having a tapered first end and a second end spaced-apart by a contoured surface configured to lodge within an intramedullary channel of the long bone so as to impede rotation of the body within the intramedullary channel and about the osteotomy site, the second end configured for selective assembly with one of the at least two plates in advance of the osteotomy so as to form a two-member implant.
A system suitable for use in a long bone osteotomy surgical procedure comprising:
- an implant a plate defining one or more through holes suitable for accepting a fastener;
- a body having a tapered first end and a second end spaced-apart by a surface configured to lodge within an intramedullary channel of the long bone so as to impede rotation of the body within the intramedullary channel and about the osteotomy site;
- and
- at least two plates for selective assembly to the second end in advance of the osteotomy so as to form a portion of a two member implant.
A method for performing a long bone osteotomy comprising:
- (a) making at least one incision to a head of the long bone and at from 0.5-1.5 cm along the long bone;
- (b) translating the head of the long bone laterally;
- (c) reaming a remaining proximal portion of the long bone to form a recess having a base in a intramedullary channel;
- (d) placing a guide wire in the long bone at the base of the recess and leaving the guide wire in position;
- (e) moving an implant into position over the guide wire and into the recess in the intramedullary channel, wherein the implant includes a plate defining one or more through holes suitable for accepting a fastener and a body having a tapered first end and a second end spaced-apart by a contoured surface configured to lodge within an intramedullary channel of a long bone so as to impede rotation of the body within the intramedullary channel, the second end forming a plate defining at least one screw hole;
- and
- (f) inserting at least one screw through the screw hole and into a cortical surface of the long bone.
A system for a long bone osteotomy comprising:
- at least two plates, each plate defining one or more through holes suitable for accepting a fastener;
- and
- a body having a tapered first end and a second end spaced-apart by a contoured surface and configured to lodge within an intramedullary channel of the long bone in the absence of rotation of the body within the intramedullary channel and about the osteotomy site, a longitudinal passageway that communicates with the second end, wherein the second end is configured for selective assembly with one of the at least two plates.
Dependencies are inferred from the claim text.