The specific aim of this study was to investigate the effect of chondroitinase ABC treatment on the frictional response of bovine articular cartilage against glass, under creep loading. The hypothesis is that chondroitinase ABC treatment increases the friction coefficient of bovine articular cartilage under creep. Articular cartilage samples harvested from two bovine knee joints ( old) were divided into a control group (intact specimens) and a treated group (chondroitinase ABC digestion), and tested in unconfined compression with simultaneous continuous sliding ( at ) under a constant applied stress of , for . The time-dependent response of the friction coefficient was measured. With increasing duration of loading, treated samples exhibited a significantly higher friction coefficient than control samples as assessed by the equilibrium value (treated: ; control: ; ), though the coefficient achieved immediately upon loading did not increase significantly (treated: ; control: ; ). Our results demonstrate that removal of the cartilage glycosaminoglycans using chondroitinase ABC significantly increases the overall time-dependent friction coefficient of articular cartilage. These findings strengthen the motivation for developing chondroprotective strategies by increasing cartilage chondroitin sulfate content in osteoarthritic joints.
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e-mail: ateshian@columbia.edu
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February 2006
Technical Papers
Frictional Response of Bovine Articular Cartilage Under Creep Loading Following Proteoglycan Digestion With Chondroitinase ABC
Ines M. Basalo,
Ines M. Basalo
Department of Mechanical Engineering,
Columbia University
, New York, NY 10027
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Faye Hui Chen,
Faye Hui Chen
Cartilage Biology and Orthopaedics Branch, National Institute of Arthritis, Musculoskeletal and Skin Diseases,
National Institutes of Health
, Bethesda, MD 20982
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Clark T. Hung,
Clark T. Hung
Department of Biomedical Engineering,
Columbia University
, New York, NY 10027
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Gerard A. Ateshian
Gerard A. Ateshian
Departments of Mechanical Engineering and Biomedical Engineering,
e-mail: ateshian@columbia.edu
Columbia University
, New York, NY 10027
Search for other works by this author on:
Ines M. Basalo
Department of Mechanical Engineering,
Columbia University
, New York, NY 10027
Faye Hui Chen
Cartilage Biology and Orthopaedics Branch, National Institute of Arthritis, Musculoskeletal and Skin Diseases,
National Institutes of Health
, Bethesda, MD 20982
Clark T. Hung
Department of Biomedical Engineering,
Columbia University
, New York, NY 10027
Gerard A. Ateshian
Departments of Mechanical Engineering and Biomedical Engineering,
Columbia University
, New York, NY 10027e-mail: ateshian@columbia.edu
J Biomech Eng. Feb 2006, 128(1): 131-134 (4 pages)
Published Online: September 6, 2005
Article history
Received:
June 6, 2005
Revised:
September 6, 2005
Citation
Basalo, I. M., Chen, F. H., Hung, C. T., and Ateshian, G. A. (September 6, 2005). "Frictional Response of Bovine Articular Cartilage Under Creep Loading Following Proteoglycan Digestion With Chondroitinase ABC." ASME. J Biomech Eng. February 2006; 128(1): 131–134. https://doi.org/10.1115/1.2133764
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