GLENOID TRIAL AND IMPLANT ASSEMBLY FOR REVERSE TOTAL SHOULDER ARTHROPLASTY AND METHOD OF USE

摘要

A glenoid trial and implant assembly for use in reverse total shoulder arthroplasty is provided along with a method for using the same. The glenoid trial and implant assembly includes a baseplate assembly, an adapter assembly, a glenoid trial, a glenoid implant, a humeral cup, and a positioning guide. The glenoid trial is coupled to the adapter assembly when the glenoid trial and implant assembly is assembled in a trialing configuration. The glenoid implant is coupled to the adapter assembly when the glenoid trial and implant assembly is assembled in an installed configuration. A temporary connection, which may be magnetic, releasably couples the glenoid trial to the adapter assembly and provides separation of the glenoid trial and the adapter assembly without requiring disassembly of the adapter assembly. A permanent connection fixes the glenoid implant to the adapter assembly.

主权项

1. A glenoid trial and implant assembly for reverse total shoulder arthroplasty comprising:
a glenoid baseplate component including a primary bore, wherein said glenoid baseplate component is configured for fixation to a glenoid; an adapter assembly including an adapter, said adapter including an adapter flange and a body portion extending from said adapter flange, wherein said body portion is received in said primary bore of said glenoid baseplate component; a glenoid trial presenting a lateral glenoid trial face that has a bulbus shape and a medial glenoid trial face that defines a glenoid trial cavity, wherein said glenoid trial is coupled to said adapter assembly when said glenoid trial and implant assembly is in a trialing configuration; a glenoid implant presenting a lateral glenoid implant face that has a bulbus shape and a medial glenoid implant face that defines a glenoid implant cavity, wherein said bulbus shape of said lateral glenoid implant face matches said bulbus shape of said lateral glenoid trial face, and wherein said glenoid implant is coupled to said adapter assembly when said glenoid trial and implant assembly is in an installed configuration; a humeral cup presenting a concave surface, wherein said concave surface of said humeral cup abuts said lateral glenoid trial face when said glenoid trial and implant assembly is in said trialing configuration, and wherein said concave surface of said humeral cup abuts said lateral glenoid implant face when said glenoid trial and implant assembly is in said installed configuration; said adapter assembly including an adapter plate coupled to said adapter, said adapter plate abutting said adapter flange, wherein said adapter plate and said adapter are discrete components, wherein said adapter plate is received in said glenoid trial cavity when said glenoid trial and implant assembly is in said trialing configuration, and wherein said adapter plate is received in said glenoid implant cavity when said glenoid trial and implant assembly is in said installed configuration; a temporary connection releasably coupling said glenoid trial to said adapter assembly that provides separation of said glenoid trial and said adapter assembly without requiring disassembly of said adapter assembly; and a permanent connection fixedly coupling said glenoid implant to said adapter assembly.