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A 34-year-old member asked:

please explain what happens with a posterior cruciate ligament tear?

1 doctor answer2 doctors weighed in
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 24 years experience
Instability: The posterior cruciate ligament (pcl) is the ligament that keeps the tibia (shin bone) in line with the femur (thigh bone), and keeps it from dropping back behind. When it tears, the body tries to heal the tear but in a looser position. Sometimes this is loose enough to cause instability (where the knee sags back and is unable to maintain a normal position. This can cause other tears or disability.

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Similar questions

A 37-year-old member asked:

What are the common symptoms of anterior cruciate ligament (acl) injury ?

3 doctor answers9 doctors weighed in
Dr. Kenneth Cheng
Family Medicine 31 years experience
Pain & Instability: Acl tears typically are painful, cause knee swelling, and cause the sensation of instability in the knee.
A 27-year-old member asked:

What could cause anterior cruciate ligament (acl) injury ?

3 doctor answers7 doctors weighed in
Dr. Vasu Brown
Integrative Medicine 34 years experience
Knee hyperextension: The ACL may tear when certain movements of the knee place a great strain on the acl. Hyperextension of the knee, that is, if the knee is straightened more than 10 degrees beyond its normal fully straightened position, is a very common cause of an torn acl. This position of the knee forces the lower leg excessively forward in relation to the upper leg. Pivoting injuries of the knee with exc.
India
A 23-year-old member asked:

What surgeries are done to fix torn ligament completely separated ?

1 doctor answer4 doctors weighed in
Dr. Albert Pizzo
Family Medicine 60 years experience
Tendon separation: There are several types of surgery procedures to correct a torn ligament the goal is the same however, and that is to repair the ligament in order to obtain normal function without pain. Consultation with orthopedic specialists is advised to evaluate the situation to determine your options as to the types of surgery for repair.
CA
A 40-year-old member asked:

What could cause posterior cruciate ligament (pcl) injury ?

2 doctor answers7 doctors weighed in
Dr. Howard Luks
Dr. Howard Luksanswered
Orthopedic Surgery 30 years experience
Force!: The PCL is probably the strongest ligament in the knee. It requires a significant amount of force or energy to cause it to tear. Pcl tears are far less common than anterior cruciate ligament (acl) tears.
A 39-year-old member asked:

Are torn ligaments able to heal on their own?

1 doctor answer4 doctors weighed in
Dr. Aruna Seneviratne
Sports Medicine 26 years experience
Some do: Some ligaments such as the medial collateral ligament (mcl) of the knee and ankle ligaments can heal on their own. Other ligaments such as the anterior cruciate ligament (acl) of the knee does not have the capacity to heal. Surgical reconstruction is needed in carefully indicated patients.

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Last updated Jun 16, 2014
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