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A glenosphere for a reverse shoulder prosthesis where a face of the glenosphere that interfaces with the glenoid bone resembles that of the glenoid bone
A glenosphere for a reverse shoulder prosthesis where a face of the glenosphere that interfaces with the glenoid bone resembles that of the glenoid bone
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机译：肩关节假体的盂球，其中与盂关节骨相接的盂球表面与盂关节骨相似
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摘要
A glenosphere for a reverse shoulder prosthesis where a face of the glenosphere that interfaces with the glenoid bone resembles that of the glenoid bone A glenosphere for a reverse shoulder prosthesis comprises a glenosphere body 108 having an articular surface configured to interface with a humeral liner, an anterior side configured to interface with a glenoid bone, a posterior side configured to interface with the glenoid bone, a superior side configured to interface with the glenoid bone, and an inferior side configured to interface with the glenoid bone. The articular surface is generally spherical where the articular surface interfaces with the humeral liner. The anterior side and the posterior side are each chamfered, and this results in a non-spherical face to interface with the glenoid bone. The non-spherical face has an anterior-posterior axis length that is smaller than a superior-inferior axis length. The chamfered anterior side and the chamfered posterior side are designed so that the non-spherical face of the glenosphere that interfaces with the glenoid bone: i) resembles that of the glenoid bone and ii) allows the glenosphere to sit flush on a resected surface of the glenoid bone when the glenosphere is disposed adjacent a glenoid plate and the glenoid plate is affixed to the glenoid bone.
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