Ligament is fibrous tissue that holds organs of the body in place and fastens bones together. Ligaments are grouped together in cords, bands, or sheets. They are as strong as rope.
A sprain occurs when ligaments covering a joint are torn or twisted. A sprained ankle is the partial tearing of the ligaments that bind the bones of the lower leg to the bones of the foot. Ligaments heal slowly. They may never heal if they are completely torn apart. Treatment of sprained ligaments may include exercise, supportive bandages or splints, or even surgery, depending on the ligaments involved and the severity of the injury.