The posterior cruciate ligament (PCL) is connective tissue located within the knee. The PCL connects the thighbone to the shinbone. This connection keeps the shinbone from moving too far backward, stabilizing the knee.
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The PCL ligament can become strained or torn when a strong force is applied to it. This force can occur during sports or other high-stress activity.
Factors that may increase your chance of injuring the PCL include:
A PCL tear may cause:
You will be asked about your symptoms and medical history. A physical exam will be done.
Images may need to be taken of the internal structure of your knee. This can be done with:
Ligament sprains are graded according to their severity:
Talk with your doctor about the best treatment plan for you. Recovery time ranges depending on the grade of your injury. Treatment steps may include:
Your ligament will need time to heal. RICE is often the main part of treatment:
Your doctor may recommend a knee brace to stabilize the knee, and crutches to keep extra weight off your leg.
Prescription or over-the-counter medications may be advised to reduce pain.
A physical therapist will assess your knee. An exercise program will be created to help recovery and to strengthen the muscles.
Surgery may be needed to fully restore function of the knee. The decision to have surgery should be made after discussion with your doctor about your athletic needs, age, and associated factors.
Some steps that may help decrease your chance of getting a PCL injury include:
American Orthopaedic Society for Sports Medicine
OrthoInfo—American Academy of Orthopaedic Surgeons
Canadian Orthopaedic Association
Canadian Orthopaedic Foundation
Knee sprains and meniscal injuries. Merck Manual for Health Care Professionals. Available at: http://www.merckmanuals.com/professional/injuries_poisoning/fractures_dislocations_and_sprains/knee_sprains_and_meniscal_injuries.html. Updated December 2014. Accessed March 9, 2015.
Ligament injuries to the knee. John Hopkins Medicine website. Available at. http://www.hopkinsmedicine.org/healthlibrary/conditions/adult/orthopaedic_disorders/ligament_injuries_to_the_knee_85,P00926/. Accessed March 9, 2015.
Posterior cruciate ligament injuries. American Academy of Orthopaedic Surgeons Ortho Info website. Available at: http://orthoinfo.aaos.org/topic.cfm?topic=A00420. Updated February 2009. Accessed March 9, 2015.
Posterior cruciate ligament (PCL) injury. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed. Updated August 14, 2014. Accessed March 9, 2015.
10/26/2010 DynaMed's Systematic Literature Surveillance http://www.ebscohost.com/dynamed: Massey T, Derry S, Moore R, McQuay H. Topical NSAIDs for acute pain in adults. Cochrane Database Syst Rev. 2010;(6):CD007402.
Last reviewed March 2015 by Teresa Briedwell, PT, DPT, OCS, CSCSLast Updated: 2/28/2014