NBC New York - A groundbreaking new surgery for a painful knee injury, first performed in northern New Jersey by Cooperman Barnabas Medical Center orthopedic surgeon Louis Rizio, MD, is helping young athletes heal quicker with less pain, by allowing the body to heal itself. The Bridge-Enhanced ACL Restoration (BEAR) implant is made of protein. It is connected to the two parts of the torn ACL to help the body heal itself.