Abstract
Glenohumeral osteoarthritis produces a wide spectrum of glenoid pathology. The B2 glenoid is defined by asymmetric posterior bone loss with the development of a biconcavity and posterior translation of the humeral head. Progressive bone loss results in increasing glenoid retroversion, which must be corrected during anatomic shoulder arthroplasty. The goals of arthroplasty should also include centering the humeral head and restoring the normal glenoid joint line. When there is minimal bone loss, this may be accomplished with a standard glenoid component and asymmetric reaming. More significant bone loss requires bone grafting or the use of an augmented glenoid component. Reverse shoulder arthroplasty is also an option for older patients or patients with severe bone loss.
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Kenneth W. Donohue declares that he has no conflict of interest.
Eric T. Ricchetti has been a paid presenter or speaker for, and has received research support from, DePuy, a Johnson & Johnson company.
Joseph P. Iannotti reports stock or stock options from Custom Orthopaedic Solutions. He has received IP royalties and consultant fees from, and been a paid presenter or speaker for, DePuy, Synthes. He has also been a paid presenter or speaker for DJ Orthopaedics. He has received IP royalties from Integra, Tornier, and Zimmer, as well as publishing royalties, financial or material support from Wolters Kluwer Health–Lippincott Williams & Wilkins. He has served on the editorial or governing board of the Journal of Shoulder and Elbow Surgery.
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This article is part of the Topical Collection on Shoulder Arthroplasty
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Donohue, K.W., Ricchetti, E.T. & Iannotti, J.P. Surgical management of the biconcave (B2) glenoid. Curr Rev Musculoskelet Med 9, 30–39 (2016). https://doi.org/10.1007/s12178-016-9315-1
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DOI: https://doi.org/10.1007/s12178-016-9315-1