Document Detail


Radial head replacement with a bipolar system: a minimum 2-year follow-up.
MedLine Citation:
PMID:  21856178     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: We report the short-term results of a cohort of patients undergoing radial head replacement using a novel radial head prosthesis with a smooth, unfixed, telescoping stem and a bipolar design after a mean follow-up of 34 months (range, 24-48 months). MATERIALS AND METHODS: Patients were assessed using clinical and radiographic examination as well as with standardized outcome measures. Thirty implants (29 patients) were available for review. RESULTS: At final follow-up, the average Mayo Elbow Performance Index Score was 92.1 and the Disabilities of the Arm, Shoulder, and Hand Score was 13.8. Clinical examination revealed significant differences between operative and nonoperative sides for flexion/extension and pronation/supination. Radiographic measurement of medial and lateral ulnohumeral spaces revealed re-establishment of a congruent elbow joint. No significant arthritic changes were identified at the radiocapitellar joint. Minimal angular migration of the implant in the proximal radial shaft was observed over time. Complications included 1 patient requiring temporary placement of a hinged external fixator for instability and 1 patient requiring revision surgery at 4 weeks. CONCLUSION: This review demonstrates that a bipolar radial head prosthesis with a smooth stem and telescoping neck effectively restores stability to elbows with a comminuted radial head fracture and valgus instability. To date, this is the largest reported outcome analysis of bipolar radial head replacement in the literature.
Authors:
Mark R Zunkiewicz; Jill S Clemente; Mark C Miller; Mark E Baratz; Robert Gray; Mark S Cohen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-17
Journal Detail:
Title:  Journal of shoulder and elbow surgery / American Shoulder and Elbow Surgeons ... [et al.]     Volume:  -     ISSN:  1532-6500     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9206499     Medline TA:  J Shoulder Elbow Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Mosby, Inc. All rights reserved.
Affiliation:
Department of Orthopaedic Surgery, Allegheny General Hospital, Pittsburgh, PA, USA.
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