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US 2017/0156873 A1Published application
Multi-curvature liners for reversed shoulder replacement
AssigneeZimmer, Inc.
InventorAndrew Hopkins
Life of this patent
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Abstract
A reverse shoulder replacement system including a humeral liner defining a split curvature bearing surface that includes a plurality of curvature regions. The plurality of curvature regions are configured to engage a glenosphere of a glenoid implant individually or in combination to provide an improved fit between the glenosphere and the humeral liner.
Claims20
A reverse shoulder replacement system, comprising:
- a humeral liner defining a split curvature bearing surface, the split curvature bearing surface including a plurality of curvature regions including at least:
- a first curvature region having a first curvature, and
- a second curvature region having a second curvature.
The replacement system of claim 10, further comprising:
- a spacer positionable between the humeral liner and the humeral stem.
A method for reverse replacement of a shoulder joint, comprising:
- inserting a stern of a humeral implant into a humerus;
- mounting a humeral liner to an end of the stern, wherein the humeral liner defines a split curvature bearing surface including a plurality of curvature regions including at least:
- a first curvature region having a first curvature, and
- a second curvature region having a second curvature;
- mounting a glenoid implant to a glenoid region of a scapula, the glenoid implant including a glenosphere;
- and
- positioning the humeral implant such that at least one of the curvature regions operably engages the glenosphere of the glenoid implant.
4 more elements
The method of any one of aims 12, wherein the first radius is at least about 75% of the second radius.
Dependencies are inferred from the claim text.