October 2013 - world-first Trial for Tendon Repair Using Tendon Stem Cells Published in the Prestigious American Journal of Sports Medicine. March 2015 - an injection of a patient's bone marrow stem cells during rotator cuff surgery significantly improved healing and tendon durability, according to a study presented today at the 2015 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS). Oldest news: * March 2011 - UK Stem Cell Company Cures Race Horse Tendons, Humans Next.