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Quantitative Assessment of Glenohumeral Joint Forces in Positions of Overhead Activities: Effects of Shoulder Arthroplasty

[+] Author Affiliations
Thay Q. Lee, Mark Schamblin, Bruce Y. Yang, Michelle H. McGarry, Ranjan Gupta

VA Healthcare System and University of California at Irvine, Long Beach, CA

Paper No. IMECE2002-33021, pp. 311-312; 2 pages
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Advances in Bioengineering
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-3650-9 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME


Glenohumeral arthroplasty as well as hemiarthroplasty, although providing adequate pain relief, has not shared in the success of similar joint replacement procedures such as total knee arthroplasty or total hip arthroplasty. Short comings of this procedure include a decreased range of motion postoperatively as well as increased incidents of glenoid component loosening in total shoulder procedures. This is especially a problem in the end ranges of motion where eccentric loading of the glenoid component are thought to occur. The purpose of this study was to quantify the glenohumeral joint forces before and after bipolar shoulder hemiarthroplasty and total shoulder arthroplasty for positions simulating overhead activities and commonly relied upon by the wheelchair dependent individual.

Copyright © 2002 by ASME
Topics: Force , Arthroplasty



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