The glenohumeral joint suffers more dislocations than any other joint, most of which occur in the anterior direction. The anterior band of the inferior glenohumeral ligament (AB-IGHL) is the primary restraint to these dislocations and as a result experiences the highest strains during these events. [1] Injuries to the capsule following dislocation include permanent tissue deformation that increases joint mobility and contributes to recurrent instability. [2] This deformation can be quantified by measuring nonrecoverable strain. [3] Simulated injury of the capsule results in permanently elongated tissue and nonrecoverable strain. Current surgical repair techniques are subjective and may not fully address all capsular tissue pathologies resulting from dislocation. Surgeons typically repair the injured capsule by plicating the stretched-out tissue; however, these techniques are inadequate with 23% of patients needing an additional repair. [4] Quantitative data on the changes in the biomechanical properties of the capsule following dislocation may help to predict the amount of capsular tissue to plicate for restoring normal stability. Therefore, the objectives of this study were to quantify changes in stiffness and material properties of the AB-IGHL tissue sample following simulated injury (creation of nonrecoverable strain).
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ASME 2010 Summer Bioengineering Conference
June 16–19, 2010
Naples, Florida, USA
Conference Sponsors:
- Bioengineering Division
ISBN:
978-0-7918-4403-8
PROCEEDINGS PAPER
Mechanical Properties of the Glenohumeral Capsule Change With Simulated Injury
Carrie A. Voycheck,
Carrie A. Voycheck
University of Pittsburgh, Pittsburgh, PA
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Patrick J. McMahon,
Patrick J. McMahon
University of Pittsburgh, Pittsburgh, PA
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Richard E. Debski
Richard E. Debski
University of Pittsburgh, Pittsburgh, PA
Search for other works by this author on:
Carrie A. Voycheck
University of Pittsburgh, Pittsburgh, PA
Patrick J. McMahon
University of Pittsburgh, Pittsburgh, PA
Richard E. Debski
University of Pittsburgh, Pittsburgh, PA
Paper No:
SBC2010-19267, pp. 321-322; 2 pages
Published Online:
July 15, 2013
Citation
Voycheck, CA, McMahon, PJ, & Debski, RE. "Mechanical Properties of the Glenohumeral Capsule Change With Simulated Injury." Proceedings of the ASME 2010 Summer Bioengineering Conference. ASME 2010 Summer Bioengineering Conference, Parts A and B. Naples, Florida, USA. June 16–19, 2010. pp. 321-322. ASME. https://doi.org/10.1115/SBC2010-19267
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