Screw migration in a 14-year-old boy with hip osteotomy; a rare cause of upper thigh hematoma.

Soft tissue injury due to orthopedic hardware migration is an uncommon complication. However particularly patients who have routine physical therapy sessions for extremity contractures are at risk for vascular injury in the setting of migrated screws. Ultrasound is an efficient modality to evaluate migrated screws and adjacent soft tissue structures. As a consequence of repetitive trauma a migrated screw would eventually result in injury. Herein a case of upper thigh hematoma due to screw migration in a patient with hip osteotomy is reported.