A case report of post traumatic radioulnar synostosis after isolated closed radial head fracture with radial head subluxation

Radioulnar synostosis is a rare pathological fusion of the tow forearm bones, when seen in pediatric must differentiate between congenital Synostosis versus post traumatic synostosis, radioulnar uncommon especially if it was closed fracture and treated conservatively. We describe 5 year old girl who presented with 1 following radial head subluxation, full pronation limitation supination compensated for shoulder abduction, patient missed her appointment showed at age 11 increase supination. suggest that clinicians should be aware this potential treating patients neck fractures associated elbow injuries. It advisable to conduct more frequent follow-up examinations using radiography assess range motion promptly identify any signs proximal synostosis.