Document Detail


Observation on retrieved Hylamer glenoids in shoulder arthroplasty: problems associated with sterilization by gamma irradiation in air.
MedLine Citation:
PMID:  11988733     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Hylamer is an ultra-high molecular weight polyethylene that was used in the glenoid prosthesis of the Global Shoulder. It was developed from a joint venture with DePuy Orthopaedics, Inc, and E.I. DuPont Company. In presterilization evaluations it was noted to have improved mechanical strength with superior creep and wear resistance. However, after sterilization was performed with gamma irradiation in an air environment from 1990 to 1993, the Hylamer glenoids were affected by oxidation, which altered the mechanical properties, and they became brittle and eroded. From 1993 to 1995 Hylamer glenoids were sterilized by gamma irradiation in a nitrogen environment. From 1995 to 1998 sterilization was by gas plasma processes, which do not create the oxidation problem. Since 1998 the glenoid prosthesis of the Global Shoulder has been made exclusively of Enduron and is gas sterilized. The primary purpose of this article is to provide orthopaedic surgeons the best information available about Hylamer glenoids. We make suggestions concerning the diagnosis and treatment of the patients who had a Hylamer glenoid inserted between 1990 and 1993.
Authors:
Charles A Rockwood; Michael A Wirth
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Journal of shoulder and elbow surgery / American Shoulder and Elbow Surgeons ... [et al.]     Volume:  11     ISSN:  1058-2746     ISO Abbreviation:  J Shoulder Elbow Surg     Publication Date:    2002 Mar-Apr
Date Detail:
Created Date:  2002-05-03     Completed Date:  2002-07-08     Revised Date:  2005-11-16    
Medline Journal Info:
Nlm Unique ID:  9206499     Medline TA:  J Shoulder Elbow Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  191-7     Citation Subset:  IM    
Affiliation:
Department of Orthopaedics, University of Texas Health Science Center, San Antonio 78229-3900, USA.
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MeSH Terms
Descriptor/Qualifier:
Arthroplasty, Replacement*
Gamma Rays
Humans
Polyethylenes*
Prosthesis Design
Sterilization*
Chemical
Reg. No./Substance:
0/Polyethylenes

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


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