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.
Treatment depends on the severity of the injury.
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.
The following factors increase your chance of injuring the PCL:
A PCL tear may cause:
Your doctor will ask 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. Avoid activities that place extra stress on the knee:
Your doctor may recommend a knee brace to stabilize the knee, and crutches to keep extra weight off your leg.
To reduce pain and swelling, apply an ice pack to the area for 15-20 minutes, four times a day, for several days after the injury. Do not apply the ice directly to your skin. Wrap the ice pack in a towel.
To manage pain, your doctor may recommend:
Compression can help prevent more swelling. Your doctor may recommend an elastic compression bandage around your knee. Be careful not to wrap the bandage too tight.
Use heat only when you are returning to physical activity. Heat may then be used before stretching or getting ready to play sports to help loosen the ligament.
When the acute pain is gone, start gentle stretching as recommended. Stay within pain limits. Hold each stretch for about 10 seconds and repeat six times. Stretch several times a day.
American Academy of Orthopaedic Surgeons
American Orthopaedic Society for Sports Medicine
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 February 2012. Accessed May 3, 2012.
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 May 3, 2013.
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 May 3, 2013.
Posterior cruciate ligament (PCL) injury. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed/what. Updated April 11, 2013. Accessed May 3, 2013.
10/26/2010 DynaMed's Systematic Literature Surveillance http://www.ebscohost.com/dynamed/what.php: 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 2013 by John C. Keel, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.