Vitreous Preservation of Articular Cartilage Grafts
- 1 January 2004
- journal article
- research article
- Published by Taylor & Francis in Journal of Investigative Surgery
- Vol. 17 (2), 65-70
- https://doi.org/10.1080/08941930490422438
Abstract
Articular cartilage has proved refractory to satisfactory cryopreservation using conventional freezing methods. Therefore, an ice-free cryopreservation method by vitrification was tested. Osteochondral plugs from New Zealand White rabbits were preserved using either a freezing method or an ice-free vitrification method of cryopreservation. Preserved and fresh control plugs were implanted in the tibial plateau of allogeneic recipients. A modified O'Driscoll grading scale, based on gross pathology, histopathology, and histochemistry, was used to evaluate the explants.The histology of fresh and vitrified explants was essentially the same, while the frozen cryopreserved explants were devoid of chondrocytes and only fibroblastlike cells were observed. The O'Driscoll grading indicated that both fresh and vitrified plugs performed significantly better than frozen plugs (p < or =.05). The results demonstrate the feasibility of vitrification as a storage method for cartilaginous tissues.Keywords
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