fa عمومى General گزارش مورد case report Recurrent dislocation of peroneal tendons is a relatively rare ankle problem with numerous described surgical treatments which make the orthopaedic surgeons baffled in choosing the appropriate procedure. An 18 year old girl with a two years history of recurrent peroneal dislocation was treated successfully using plantaris tendon for delta-shape reconstruction of superior peroneal retinaculum. Her recovery was uneventful without any major complications or recurrence except surgical site tenderness and mild swelling for 5 months after surgery making a delta shaped retinaculum using plantaris tendon effectively prevents the dislocating peroneal tendons. Peroneal Tendons, Recurrent Dislocation, Plantaris Tendon 74 78 http://intjmi.com/browse.php?a_code=A-10-1-245&slc_lang=fa&sid=1 Majid Sajjadi Saravi 10031947532846002264 10031947532846002264 No Resident Of Family Medicine Department Of Family And Community Medicine University Of Toronto Southlake Regional Health Centrenewmarket, Ontario. Mohammad-Hossoin Karimi-Nasab 10031947532846002265 10031947532846002265 No Associate Professor Of Orthopedic Surgery, Mazandaran University Of Medical Science, Sari, Iran. Masood Shayesteh-Azar 10031947532846002266 10031947532846002266 Yes Associate Professor Of Orthopedic Surgery, Mazandara University Of Medical Science, Sari, Iran. Shayan Amjadi 10031947532846002267 10031947532846002267 No Orthopedic Resident, Orthopedic Research Center, Mazandaran University Of Medical Science, Sari, Iran