“…Although the cells in heart valve leaflets persist for weeks during hypothermic refrigeration in culture medium [Brockbank et al, 1992; Taylor and Brockbank, 2003], most tissues are refrigerated for only hours before significant loss of cell viability and tissue function occur. There are, however, reports supporting chondrocyte survival for days or weeks of hypothermic storage in their natural extracellular matrix in humans [Williams et al, 2003; Ball et al, 2004; Allen et al, 2005; Malinin et al, 2006] and several animal species [Black et al, 1979; Rodrigo et al, 1980; Wayne et al, 1990; Oates et al, 1995; Kim et al, 1996; Rohde et al, 2004; Williams et al, 2004; Malinin et al, 2006; Teng et al, 2008; Onuma et al, 2009]. Because such survival was considered unusual, compared with other tissue types, we previously initiated research to assess the impact of 4°C storage in DMEM culture medium on cartilage cell viability and establish whether or not cartilage plugs were an acceptable model compared with bisected femoral heads with both cartilage and bone tissue present [Brockbank et al, 2011b].…”