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Sequential changes in the mechanical properties of viable articular cartilage stored in vitro

Journal Article · · J. Orth. Res.; (United States)
Viable articular cartilage from the medial femoral condyles of rabbits was stored in vitro in tissue culture medium with various additives and the same site of each specimen was mechanically tested sequentially throughout a 12-day storage period. Indentation testing was performed with instantaneous and sustained loads. Preservation of sustained-load carrying capacity was observed in the condyles stored with additives, indicating maintenance of an intact cartilage matrix. However, initial testing with small sustained loads (preload) showed changes not observed at higher load levels. The changes noted at small sustained initial loads may reflect alterations in cartilage surface structure and may be an early indicator of its mechanical integrity. Chondrocyte viability and proteoglycan content, as measured by /sup 35/S incorporation and hexosamine concentration, were unchanged in comparison to fresh articular cartilage.
Research Organization:
Univ. of Pennsylvania School of Medicine, Philadelphia
OSTI ID:
5832899
Journal Information:
J. Orth. Res.; (United States), Journal Name: J. Orth. Res.; (United States) Vol. 2:1; ISSN JORED
Country of Publication:
United States
Language:
English