Glenoid defect-filling component
First Claim
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1. An orthopaedic glenoid prosthesis for implantation into a glenoid of a scapula and configured for use with a discrete polymer glenoid component so as to provide a bearing surface for a natural or prosthetic head of a humerus, the glenoid prosthesis comprising:
- a glenoid defect-filling component sized and shaped to fit and be implanted within a defect in a natural concave surface of the glenoid of a patient, the glenoid defect-filling component having;
(i) a porous metallic body, (ii) a plurality of holes formed in the porous metallic body, the plurality of holes being arranged in a pattern to receive a number of pegs of the discrete polymer glenoid component, and (iii) a concave surface that sits flush with the natural concave surface of the glenoid of the patient when the component is implanted in the natural concave surface of the glenoid of the patient.
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Abstract
An orthopaedic shoulder prosthesis includes glenoid defect-filling component configured to be implanted within a defect in a glenoid of a patient. The glenoid defect-filling component includes a porous metallic body and a plurality of holes formed in the porous metallic body, the plurality of holes being arranged in a pattern to receive a number of pegs of a discrete polymer glenoid component.
152 Citations
20 Claims
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1. An orthopaedic glenoid prosthesis for implantation into a glenoid of a scapula and configured for use with a discrete polymer glenoid component so as to provide a bearing surface for a natural or prosthetic head of a humerus, the glenoid prosthesis comprising:
a glenoid defect-filling component sized and shaped to fit and be implanted within a defect in a natural concave surface of the glenoid of a patient, the glenoid defect-filling component having;
(i) a porous metallic body, (ii) a plurality of holes formed in the porous metallic body, the plurality of holes being arranged in a pattern to receive a number of pegs of the discrete polymer glenoid component, and (iii) a concave surface that sits flush with the natural concave surface of the glenoid of the patient when the component is implanted in the natural concave surface of the glenoid of the patient.- View Dependent Claims (2, 3, 4, 5)
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6. An orthopaedic glenoid prosthesis for implantation into a glenoid surface of a scapula so as to provide a bearing surface for a natural or prosthetic head of a humerus, the glenoid prosthesis comprising:
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a metallic defect-filling component sized and shaped to fit and be implanted within a defect in a natural concave surface of the glenoid surface, the metallic defect-filling component having a plurality of holes extending therethrough, the plurality of holes being arranged in a hole pattern, the metallic defect-filling component also having a concave surface that sits flush with the natural concave surface of the glenoid of the patient when the component is implanted in the natural concave surface of the glenoid of the patient, and a polymer glenoid component, the polymer glenoid component being discrete from the metallic defect-filling component and having (i) a bearing surface configured to articulate with the head of the humerus, and (ii) an engaging surface that is opposite the bearing surface, the engaging surface comprising a plurality of pegs arranged in a peg pattern that corresponds to the hole pattern of the metallic defect-filling component. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An orthopaedic glenoid prosthesis for implantation into a glenoid surface of a scapula so as to provide a bearing surface for a natural or prosthetic head of a humerus, the glenoid prosthesis comprising:
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a metallic defect-filling component sized and shaped to fit and be implanted within a defect in a natural concave surface of the glenoid surface, the metallic defect-filling component having (i) a first hole positioned in the center of the metallic defect-filling component, (ii) a second hole positioned between the center and an edge of the metallic defect-filling component, and (iii) a concave surface that sits flush with the natural concave surface of the glenoid of the patient when the component is implanted in the natural concave surface of the glenoid of the patient; and a polymer glenoid component configured to be secured to the metallic defect-filling component, the polymer glenoid component being discrete from the metallic defect-filling component and having (i) a bearing surface configured to articulate with the head of the humerus, and (ii) an engaging surface that is opposite the bearing surface, the engaging surface comprising (a) an anchor peg positioned in a center of the polymer glenoid component and extending into the first hole of the metallic defect-filling component so as to secure the polymer glenoid component to the metallic defect-filling component, and (b) a stabilizing peg positioned between the center and an edge of the polymer glenoid component and extending into the second hole of the metallic defect-filling component to prevent rotation of the polymer glenoid component. - View Dependent Claims (17, 18, 19)
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20. An orthopaedic glenoid prosthesis for implantation into a glenoid of a scapula and configured for use with a discrete polymer glenoid component so as to provide a bearing surface for a natural or prosthetic head of a humerus, the glenoid prosthesis comprising:
a glenoid defect-filling component sized and shaped to fit and be implanted within a defect in a natural concave surface of the glenoid of a patient, the glenoid defect-filling component having;
(i) a porous metallic body, (ii) a hole formed in the porous metallic body, the hole being shaped, sized, and positioned to receive a peg of the discrete polymer glenoid component, and (iii) a concave surface that sits flush with the natural concave surface of the glenoid of the patient when the component is implanted in the natural concave surface of the glenoid of the patient.
Specification