Document Detail


The clinical and radiographical results of reverse total shoulder arthroplasty with eccentric glenosphere.
MedLine Citation:
PMID:  22534957     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Scapular notching is a common worrying finding after reverse total shoulder arthroplasty (RSA). Eccentric glenospheres have recently been developed in an attempt to prevent notching. The purpose of this study was to evaluate the clinical and radiological results of RSA with an eccentric glenosphere and compare the incidence and the severity of scapular notching using a concentric glenosphere.
METHODS: A prospective evaluation was performed of 57 consecutive RSA performed over a two-year period. At a minimum of two years postoperatively, 47 RSAs with a mean 30.4 months follow-up were evaluated clinically and radiographically and compared to a historical control group of concentric glenospheres performed by the same surgeon.
RESULTS: The mean Constant score significantly increased (from 32.4 to 71.8) postoperatively (p < 0.0001). Active forward flexion and external rotation also significantly increased (p < 0.0001). Overall, scapular notching was present in 19 shoulders (40.4 %). Grade 1 notching was observed in 13 shoulders (27.7 %), grade 2 in five shoulders (10.6 %), grade 3 in one shoulder (2.1 %), and grade 4 in no shoulders. There was no significant difference in the incidence (p = 0.289) of notching between the eccentric and concentric glenospheres. However, the severity of notching was significantly decreased (p = 0.011) with an eccentric glenosphere. The postoperative Constant score was not significantly different between patients with or without notching (p = 0.651).
CONCLUSION: A Grammont type RSA with eccentric glenosphere can result in good clinical outcomes. An eccentric glenosphere does not prevent notching, but decreases the severity of scapular notching at early follow-up.
Authors:
Naoko Mizuno; Patrick J Denard; Patric Raiss; Gilles Walch
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article     Date:  2012-04-26
Journal Detail:
Title:  International orthopaedics     Volume:  36     ISSN:  1432-5195     ISO Abbreviation:  Int Orthop     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-07-30     Completed Date:  2013-01-30     Revised Date:  2013-08-14    
Medline Journal Info:
Nlm Unique ID:  7705431     Medline TA:  Int Orthop     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1647-53     Citation Subset:  IM    
Affiliation:
Centre Orthopédique Santy, 24 avenue Paul Santy, 69008, Lyon, France. nao-miz@hcc5.bai.ne.jp
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MeSH Terms
Descriptor/Qualifier:
Aged
Aged, 80 and over
Arthroplasty / instrumentation*,  methods
Female
Follow-Up Studies
Glenoid Cavity / radiography*
Humans
Incidence
Male
Middle Aged
Postoperative Complications / epidemiology,  radiography
Prospective Studies
Prostheses and Implants*
Prosthesis Design / classification*
Retrospective Studies
Severity of Illness Index
Shoulder Joint / radiography,  surgery*
Treatment Outcome
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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