Why A.C.L. Injuries Sideline So Many AthletesBy GRETCHEN REYNOLDS
Tears to the anterior cruciate ligament sideline more athletes for longer periods of time than almost any other acute injury. Seasons, even careers, end when the A.C.L. tears.
Until recently, however, researchers couldn’t explain why torn A.C.L.’s were so difficult to treat. But studies recently completed at Boston Children’s Hospital and Rhode Island Hospital in Providence help to elucidate why the A.C.L., almost alone among ligaments, doesn’t heal itself. The findings also shed light on how that situation could potentially be changed, and blown knees more easily repaired.