Torn ACL Topic Guide
Torn ACL: The anterior cruciate ligament (ACL) is the most commonly injured knee ligament. Symptoms and signs include a popping sound, knee pain and swelling, and trouble walking. Treatment typically involves surgery and physical therapy. Recovery after surgery for a torn ACL may take six to nine months.
Knee Injury Knee injuries may be caused by a direct blow to the knee or by twisting or stretching of the ligaments, tendons, and surrounding muscles. Knee pain and swelling are common symptoms and signs of a knee injury. Treatment depends upon the type of knee injury but usually incorporates rest, ice, compression, and elevation. Strengthening exercises and physical therapy may also be necessary.