What causes the kneecap to dislocate and how is it treated?

Patellar dislocation occurs when the kneecap shifts out of its groove on the femur, often due to a twisting injury, ligament laxity, or anatomical factors such as a shallow groove or misalignment. First-time dislocations are typically treated with bracing and physical therapy, while recurrent instability may require surgical procedures such as MPFL reconstruction to stabilize the kneecap.

What is MPFL reconstruction for patellar instability?

MPFL (medial patellofemoral ligament) reconstruction is a surgical procedure that replaces the torn ligament responsible for holding the kneecap in its proper position. A small tendon graft is used to recreate the ligament, restoring stability and preventing future dislocations. This procedure is highly effective for patients with recurrent patellar instability.

How long is recovery after patellar stabilization surgery?

Recovery after MPFL reconstruction typically involves 2 to 4 weeks of limited weight-bearing with crutches, followed by progressive physical therapy. Most patients regain full range of motion by 3 months and return to sports between 5 and 7 months. Consistent rehabilitation is essential for restoring quadriceps strength and preventing re-injury.

A kneecap that stays where it belongs

Patellar Instability

Patellar instability means your kneecap (patella) tends to slide out of its groove, partially or completely. It can happen after a sudden twist or impact, or it may be something you've dealt with repeatedly. It can feel scary, but this is a well-understood condition with very effective treatments.

What You Might Feel

Kneecap sliding or 'popping' out of place
Swelling and pain after a dislocation episode
A feeling of the knee buckling or giving way
Apprehension when bending or twisting the knee

How We Help

Physical therapy to strengthen the VMO and surrounding muscles
Bracing and activity modification during recovery
MPFL reconstruction to restore kneecap stability
Tibial tubercle osteotomy for alignment correction

Your Recovery

Many first-time dislocations heal well with physical therapy and bracing. For recurrent instability, MPFL reconstruction is highly successful, with most patients returning to full activity in 4-6 months.

If your kneecap has come out of place more than once, you're not alone — and there are excellent solutions. Dr. Elguizaoui will help you understand your options clearly.

For patellar instability and kneecap dislocation treatment in New York City, Dr. Sameh Elguizaoui offers expert care including MPFL reconstruction and physical therapy programs. With offices in Manhattan, Brooklyn, and Scarsdale, he provides comprehensive knee evaluation and treatment for patients throughout the greater NYC area.

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