There is no consensus on the optimal surgical technique for recurrent patellofemoral instability. We report a case of a 28th years old female with history of nontraumatic patellar instability of right knee. The patient had major limitations in the activities of daily living and stopped sports. Clinically she had patella instability, pain and quadricipital atrophy.
After failed conservative treatment she was submitted to an arthroscopic medial patellar plication. She is now 2 years post op, doing sports, and with high quality of life. This case underlies this option as a good treatment choice to this problem.
Aim of this work
evaluate the outcome of arthroscopic assisted medial plication of the patella in case of recurrent patellar dislocation and sublaxation. analyzing its efficacy, safety and possible complications.
Patients and Methods
Between May 2017 and May 2019 in Benha University Hospital a prospective study was done, 20 patients (20 knees) with chronic lateral patellar instability were managed by arthroscopic allinside proximal Patellar Realignment.

Conclusions:
Percutaneous lateral release and medial plication method remains a simple and effective treatment modality compared with MPFL reconstruction surgery.