The MPFL, or Medial Patellofemoral Ligament, is the ligament keeping the kneecap, or patella, from dislocating. The MPFL stabilizes the kneecap, and when a kneecap dislocation occurs, the MPFL may tear or become stretched out. Without a competent MPFL, the kneecap can recurrently dislocate.

 

Kneecap dislocations cause a swollen, painful knee often with the feeling of a clunk or pop. In addition to causing knee pain, kneecap dislocations can cause damage to the cartilage on the underside of the kneecap.

 

This injury can occur for a variety of reasons: a plant-and-twist (pivot) injury, or a fall or trauma. An examination in the office as well as MRI imaging will confirm the presence of a torn MPFL or any cartilage injuries to the underside of the kneecap. Treatment depends on the severity of the injuries found:

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• For a completely torn or severely stretched MPFL or a recurrently unstable kneecap, Dr. Bedford may recommend surgical reconstruction of the MPFL.

• For a mildly stretched MPFL or some first time dislocators, Dr. Bedford may recommend conservative treatment measures first, such as wearing a brace and physical therapy. 

• For cartilage injuries to the underside of the patella, Dr. Bedford may recommend surgically treating these defects.