Arthroscopic Patellar Plication: An Option for Patellar Instability with Femoral Trochlear Dysplasia

A 28-year-old female patient presented with history of pain, swollen knee and major limitations in the activities of daily living. She had pain for 8 to 10 years but was mild, and no limitations on regular or sportive activities. In the last months the pain and the limitations on regular activities escalade. In the physical examination the patient had quadricipital atrophy, more than 50% lateral patella translation, positive lateral tilt test, positive grind test and painful facet palpation. We evaluated the Lysholm and Subjective IKDC scores, and she had 28 and 33 points respectively.