Medial Patellofemoral Ligament (MPFL) Reconstruction–with Allograft

Medial Patellofemoral Ligament (MPFL) reconstruction is a procedure used to correct serious and recurring dislocation of the kneecap. MPFL is the major ligament which stabilizes the patella and helps in preventing kneecap dislocation. Dislocation can be caused by a direct blow to the knee, twisting injury to the lower leg, strong muscle contraction, or because of a congenital abnormality such as shallow or malformed joint surfaces

Preparation

• Avoid certain medications. Your doctor may want you to avoid taking medications or dietary supplements that can increase your risk of bleeding.
• Fast beforehand. Depending on the type of anesthesia you’ll have, your doctor may want you to avoid eating, and drinking six to twelve hours before your procedure.
• Arrange for a ride. You won’t be allowed to drive yourself home after the procedure, so make sure someone will be available to pick you up. If you live alone, ask someone to check on you that evening or, ideally, stay with you the rest of the day.
• Choose loose clothing. Wear loose, comfortable clothing baggy gym shorts, slip on shoes for example, if you’re having knee surgery so you can dress easily after the procedure.

Surgery

The surgery includes using a ligament taken from elsewhere in the body or a synthetic replacement. The surgeon reconstructs the MPFL to keep the kneecap in the trochlear groove, preventing dislocation.

Recovery

After surgery, patients will complete physical therapy for 3 to 6 months to ensure the muscles are strong and stable. Patients can expect to return to unrestricted activities by 6 months to 1 year after surgery.

Risks

As with any surgical procedure, complications can occur. Some possible complications may include, but are not limited to, the following:

• Bleeding into the knee joint.
• Damage to the cartilage, meniscus, or ligaments in the knee.
• Formation of a blood clot in the leg.
• Injury to a blood vessel or nerve.
• Infection in the knee joint.
• Knee stiffness following the procedure.