CELLvo™ Ostoeoarthritic Human Chondrocytes (50-70y) are primary, uncultured cells isolated from recently-diseased cadaver cartilage from donors between 50 and 70 years old. Osteoarthritis status is determined by macroscopic inspection using a modified Outerbridge (1960) scale. Cells are isolated by enzymatic digestion prior to cryopreservation.