The Journal of Bone and Joint Surgery (American). 2008;90:885-896.
doi:10.2106/JBJS.G.01263
© 2008 The Journal of Bone and Joint Surgery, Inc.
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Current Concepts Review

Glenoid Component Failure in Total Shoulder Arthroplasty

Frederick A. Matsen, III, MD1, Jeremiah Clinton, MD1, Joseph Lynch, MD1, Alexander Bertelsen, PA1 and Michael L. Richardson, MD1

1 Department of Orthopaedics and Sports Medicine, University of Washington Medical Center, 1959 N.E. Pacific Street, Box 356500, Seattle, WA 98195-6500. E-mail address for F.A. Matsen III: matsen{at}u.washington.edu

Disclosure: The authors did not receive any outside funding or grants in support of their research for or preparation of this work. Neither they nor a member of their immediate families received payments or other benefits or a commitment or agreement to provide such benefits from a commercial entity. A commercial entity (DePuy, Endowed Chair for Shoulder Research) paid or directed in any one year, or agreed to pay or direct, benefits in excess of $10,000 to a research fund, foundation, division, center, clinical practice, or other charitable or nonprofit organization with which one or more of the authors, or a member of his or her immediate family, is affiliated or associated.

A video supplement to this article will be available from the Video Journal of Orthopaedics. A video clip will be available at the JBJS web site, www.jbjs.org. The Video Journal of Orthopaedics can be contacted at (805) 962-3410, web site: www.vjortho.com.

Glenoid component failure is the most common complication of total shoulder arthroplasty.

Glenoid components fail as a result of their inability to replicate essential properties of the normal glenoid articular surface to achieve durable fixation to the underlying bone, to withstand repeated eccentric loads and glenohumeral translation, and to resist wear and deformation.

The possibility of glenoid component failure should be considered whenever a total shoulder arthroplasty has an unsatisfactory result. High-quality radiographs made in the plane of the scapula and in the axillary projection are usually sufficient to evaluate the status of the glenoid component.

Failures of prosthetic glenoid arthroplasty can be understood in terms of failure of the component itself, failure of seating, failure of fixation, failure of the glenoid bone, and failure to effectively manage eccentric loading.

An understanding of these modes of failure leads to strategies to minimize complications related to prosthetic glenoid arthroplasty.


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