21 year old female with history of recurrent dislocation patella was operated 2yrs back .lateral release ,proximal and distal alignment were performed .intraoperatively there was no dislocation. patient was asymptomatic for one year when after fall she again developed symptoms of recurrent dislocation of patella dwhich takes place in flexion beyond 100 degree
PMH
nothing significant
PE
scar mark of previous surgery present
ROM 0to 140
patella dislocation after flexion of 110 degree
Q angle not measured