Abstract:
A prosthesis suited for orthopedic implantation possesses a multi-piece stem component that supports an artificial joint surface that can articulate with another artificial joint surface in various ways. The prosthesis can be assembled in a snap fit and/or interlocking fashion that provides positive locking means without the use of screws or other fasteners. The prosthesis can accommodate fitment of a plastic joint surface made, e.g., from ultra high molecular weight polyethylene. The prosthesis is well suited for use in an ankle replacement system that can be installed using minimally invasive intramedullary guidance established with respect to the major axis of the tibia by minimally invasive access through the calcaneus, through an incision in the bottom of the foot. The prosthesis makes possible the installation of a total ankle system using minimally invasive anterior access to the ankle joint for making bony cuts and to install prosthesis components.
Abstract:
An implant (14A) for the repair or regeneration of tissue (30) in the body of a living being, which implant comprises pores, a depot of material, and an osteoconductive matrix comprising native insoluble collagen, said pores having a size of at least about 100 microns.
Abstract:
A surgical instrument assembly for use during a surgical procedure to implant a stemless humeral component to replace the humeral head of a patient's humerus, comprising: a sizing instrument (160) having a size that mimics the size of the stemless humeral component to be implanted to replace the humeral head of the patient's humerus, the sizing instrument having a generally round body with a plurality of punch guide holes (170) formed therein, wherein each of the plurality of punch guide holes is positioned in a location that (a) is located over cancellous bone tissue of the patient's humerus when the sizing instrument is secured to the patient's humerus, and (b) aligns with a plurality of legs of the stemless humeral component.
Abstract:
A system for implanting an interbody device (20) between adjacent vertebrae (1) comprises an interbody device having a plurality of lobes extending outwardly from a longitudinal rib, and having a relaxed shape approximating the shape of the disc being replaced. An insertion guide (100) is provided having a bore therein from a proximal end to a distal end thereof to accept said interbody device (20) in an unrelaxed shape, wherein said distal end is shaped for insertion into an intervertebral space. The insertion rod may be positioned within said bore of said insertion guide whereby said interbody device is positioned within said intervertebral space by advancing said insertion rod into said insertion guide.
Abstract:
An implantable modular orthopaedic hip prosthesis includes an implantable distal stem component having a tapered post which can be received into a tapered bore of an implantable proximal body component. A threaded bore extends inferiorly into the distal stem component, and an alignment key is secured to the superior surface of the distal stem component and extends superiorly therefrom.
Abstract:
A surgical instrument and method for inserting a spinal implant (100, 170) in the intervertebral disc space between two adjacent vertebrae and an anchor (130, 140, 150, 160, 164, 166) engageable with the implant (100, 170) and an adjacent vertebra are provided. The instrument includes an inserter (200, 500) having an engagement portion including a distal engagement surface (206, 506) for interfacing with the implant (100, 170) and a handle portion (208, 508). The engagement portion includes a track (218, 220, 518, 519, 520, 521) for slidably translating the anchor (130, 140, 150, 160, 164, 166) toward the engagement surface (206, 506). A kit is provided including the inserter (200, 500) and a tamp (400, 600) to force the anchor (130, 140, 150, 160, 164, 166) into engagement with the implant (100, 170) and the adjacent vertebra. The kit may also include a cutter (300) for piercing the adjacent vertebra.
Abstract:
A system for implanting an interbody device (20) between adjacent vertebrae (1) comprises an interbody device having a plurality of lobes extending outwardly from a longitudinal rib, and having a relaxed shape approximating the shape of the disc being replaced. An insertion guide (100) is provided having a bore therein from a proximal end to a distal end thereof to accept said interbody device (20) in an unrelaxed shape, wherein said distal end is shaped for insertion into an intervertebral space. The insertion rod may be positioned within said bore of said insertion guide whereby said interbody device is positioned within said intervertebral space by advancing said insertion rod into said insertion guide.