Summary The medial collateral ligament (MCL) tear is a common injury to the inside of the knee that typically occurs in certain sports. Severity of the MCL injury falls into one of three grades ...

ROCHESTER, Minn., April 12 (UPI) -- A U.S. orthopedic surgeon discovered a common cause of debilitating wrist pain -- a split tear of the UT ligament -- that can be repaired arthroscopically.