Tests & Treatments for Anterior Cruciate Ligament (ACL) Injuries at University of Colorado Hospital
Tests for ACL Injuries
Physical History and Examination
Your doctor will ask what caused your injury. A sudden twist to the knee that causes a pop in the joint and swelling is a good indication of an ACL injury. A physical examination of the knee joint may reveal a “soft end point” that is a sign that solid ligament is missing.
Magnetic Resonance Imaging
A magnetic resonance imaging (MRI) test shows three-dimensional pictures of the ligaments and other tissues in the knee. The MRI confirms an ACL injury.
Treatments for ACL Injuries
If the ACL is stretched or slightly torn, you may be able to heal it without surgery.
Nonsurgical Treatment
Nonsurgical treatment requires:
- Resting, icing and elevating the knee frequently to reduce swelling
- Exercising regularly to increase range of motion, strength and flexibility
Your doctor may also ask you to wear a brace to keep the joint from moving while it heals.
Surgical Treatment
A severe tear of the ACL requires surgery. An ACL injury can usually be repaired using arthroscopic surgery, which creates less scarring than open knee surgery.
This technique requires relatively small incisions, through which your doctor inserts instruments to see inside the knee joint and locate the tear. The repair of the joint is made with small tools inserted through the incisions.