As anyone who’s ever injured a knee or elbow will tell you, recovery can be a long and painful process. Cartilage is an exceptionally slow-healing tissue, and, until now, the missing or damaged tissue is often irreplaceable. Researchers at the University of Guelph are hoping stem cells might provide the needed tissue replacements. Biomedical sciences professor Dean Betts and doctoral candidate Thomas Koch are hoping to use stem cells to improve cartilage healing after joint injuries. They’re working with horses, where joint injuries are both common and costly, and say the research could be a model for helping human joint...