Method and apparatus for use of a glenoid component
AssigneeBiomet, Inc.
InventorsJason M. Shultz, Kevin T. Stone
Life of this patent
Estimating the term…
Abstract
A glenoid component for use in shoulder arthroplasty, the glenoid component is adapted to be implanted into a scapula and engaged by a head of a humeral component. The glenoid component has a body with a first articulating surface and a second medial surface opposite said first articulating surface. The first articulating surface adapted to be engaged by the head of the humeral component and the second medial surface is adapted to be secured to the scapula. A plurality of arcuate pegs, each of said arcuate pegs having a first end adapted to engage a cavity formed in the scapula and a second end extend from the medial surface.
Claims24
A glenoid component for use in shoulder arthroplasty, said glenoid component adapted to be implanted into a scapula and engaged by a head of a humeral component, said glenoid component comprising:
- a body having a first articulating surface and a second medial surface opposite said first articulating surface, said first articulating surface adapted to be engaged by the head of the humeral component and said second medial surface adapted to be secured to the scapula;
- and
- a plurality of arcuate pegs, each of said arcuate pegs having a first end adapted to engage a cavity formed in the scapula and a second end extending from said medial surface.
A set of surgical components for use in shoulder arthroplasty, said set of surgical components comprising:
- a glenoid component adapted to be implanted into a scapula and engaged by a head of a humeral component, said glenoid component including, a body having a first spherical articulating surface and a second medial surface, said first spherical articulating surface adapted to permit rotational and translational movement of the head of the humeral component, and a plurality of arcuate pegs, each of said arcuate pegs having a first semi-spherical end adapted to engage a cavity formed in the scapula and a second end extending from said medial portions, each of said arcuate pegs includes flat sidewalls defining a first cross-section.
A method for implanting a glenoid component during shoulder arthroplasty, said method comprising the steps of:
- drilling a center pilot hole in a glenoid cavity of a scapula;
- inserting a guide pin of a glenoid surface rasp into the center pilot hole;
- rotating the glenoid surface rasp to prepare a spherical surface on the glenoid cavity;
- positioning a drill guide into the pilot hole to secure the drill guide to the scapula;
- drilling a plurality of holes in the scapula using a drill template of the drill guide;
- providing a glenoid component having a body, a plurality of arcuate pegs, said body having a first articulating surface and a second medial surface, each of said arcuate pegs extending from said medial surface and adapted to engage the hole drilled in the scapula;
- inserting cement into the plurality of holes drilled in the glenoid cavity, on the spherical surface of the glenoid cavity and on the second medial surface of the glenoid component;
- and
- inserting the glenoid component into the glenoid cavity of the scapula by inserting the plurality of arcuate pegs into the plurality of holes and securing the second medial surface to the spherical surface of the glenoid cavity.
Dependencies are inferred from the claim text.