Posterior Cruciate Ligament Injury
DefinitionThe 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.
|Posterior Cruciate Ligament|
|Copyright © Nucleus Medical Media, Inc.|
CausesThe 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.
Risk FactorsFactors that may increase your chance of injuring the PCL include:
- Sports injury
- Motor vehicle accident
- Fall on a bent knee
- Strong force to the leg immediately below the kneecap
- Knee dislocation
SymptomsA PCL tear may cause:
- Pain and swelling in the knee
- Soreness in the area behind the knee
- Weakness or instability in the knee
- Difficulty walking
- Pain when moving the knee
DiagnosisYou 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:
- Grade 1—Mild ligament damage
- Grade 2—Partial tearing of the ligament
- Grade 3—Complete tearing of the ligament
TreatmentTalk with your doctor about the best treatment plan for you. Recovery time ranges depending on the grade of your injury. Treatment steps may include:
Supportive CareYour ligament will need time to heal. RICE is often the main part of treatment:
- Rest—Activities may need to be restricted at first. Normal activities will be gradually reintroduced.
- Ice—Ice therapy may help relieve swelling. Heat or cold may be recommended throughout recovery if they provide benefits.
- Compression—Used for a limited time, compression bandages can provide gentle pressure to help move fluids out of the area.
- Elevation—Keeping the area elevated can help fluids drain out or prevent fluids from building up.
Physical TherapyA physical therapist will assess your knee. An exercise program will be created to help recovery and to strengthen the muscles.
SurgerySurgery 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.
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