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The Prognosis for Improvement in Comfort and Function After the Ream-and-Run Arthroplasty for Glenohumeral ArthritisAn Analysis of 176 Consecutive Cases
Brian B. Gilmer, MD1; Bryan A. Comstock, MS2; Jocelyn L. Jette, BS1; Winston J. Warme, MD1; Sarah E. Jackins, PT3; Frederick A. Matsen, III, MD1
1 Department of Orthopaedics and Sports Medicine, University of Washington Medical Center, Box 356500, 1959 N.E. Pacific Street, Seattle, WA 98195. E-mail address for F.A. Matsen III: matsen@u.washington.edu
2 Department of Biostatistics, University of Washington, Brooklyn Avenue, N.E., Box 359461, Seattle, WA 98195. E-mail address: bac4@u.washington.edu
3 Exercise Training Center, University of Washington, 4245 Roosevelt Way, N.E., Box 354745, Seattle, WA 98105. E-mail address: sjackins@u.washington.edu
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Disclosure: None of the authors received payments or services, either directly or indirectly (i.e., via his or her institution), from a third party in support of any aspect of this work. None of the authors, or their institution(s), have had any financial relationship, in the thirty-six months prior to submission of this work, with any entity in the biomedical arena that could be perceived to influence or have the potential to influence what is written in this work. One or more of the authors has had another relationship, or has engaged in another activity, that could be perceived to influence or have the potential to influence what is written in this work. The complete Disclosures of Potential Conflicts of Interest submitted by authors are always provided with the online version of the article.

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Investigation performed at the University of Washington, Seattle, Washington

Copyright © 2012 by The Journal of Bone and Joint Surgery, Inc.
J Bone Joint Surg Am, 2012 Jul 18;94(14):e102 1-9. doi: 10.2106/JBJS.K.00486
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Knowledge of the factors affecting the prognosis for improvement in function and comfort with time after shoulder arthroplasty is important to clinical decision-making. This study sought to identify some of these factors in 176 consecutive patients undergoing the ream-and-run procedure.


The time course for improvement in patient function and comfort was determined for the entire group as well as for subsets by sex, age, diagnosis, preoperative function, and surgery date. Patients having repeat surgery were analyzed in detail.


Shoulder comfort and function increased progressively after the ream-and-run procedure, reaching a steady state by approximately twenty months. The shoulders in 124 patients with at least two years of follow-up were improved by a minimal clinically important difference. The shoulders in sixteen patients with at least two years of follow-up were not improved by the minimal clinically important difference. Twenty-two patients had repeat procedures, but only seven had revision to a total shoulder arthroplasty. Fourteen patients did not have either a known revision arthroplasty or two years of follow-up. The best prognosis was for male patients over the age of sixty years, with primary osteoarthritis, no prior surgical procedures, a preoperative score on the Simple Shoulder Test of ≥5 points, and surgery after 2004. Repeat surgical procedures were more common in patients who had a greater number of surgical procedures before the ream-and-run surgery.


This study is unique in that it characterizes the factors affecting the time course for improvement in shoulder comfort and function after a ream-and-run procedure. Improvement occurs after this procedure for at least 1.5 years. This procedure appears to be best suited for an older male patient with reasonable preoperative shoulder function without prior shoulder surgery.

Level of Evidence: 

Prognostic Level II. See Instructions for Authors for a complete description of levels of evidence.

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    Accreditation Statement
    These activities have been planned and implemented in accordance with the Essential Areas and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint sponsorship of the American Academy of Orthopaedic Surgeons and The Journal of Bone and Joint Surgery, Inc. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.
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