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Chondrocyte viability of cartilage impacted with a metal (MOC) or cartilage (COC) impactor, within the impact area. Data are relative to the pre-impact value for each specimen. The impactor type had an overall effect on the percentage of chondrocyte death (p = 0.0048). No significant difference in the viability changes was detected between any of the days for either the MOC (p = 0.44) or COC (p = 0.25) groups.
