Forearm Compartment Syndrome Concomitant with Pseudoaneurysm of the Anterior Interosseous Artery after Minor Penetrating Injury.

A 16-year-old man sustained a minor penetrating injury to his forearm, resulting in pseudoaneurysm formation that caused acute compartment syndrome with muscle contracture. Surgical treatment, including fasciotomy, evacuation of the hematoma and aneurysmectomy, followed by intensive hand therapy provided a successful outcome. Traumatic pseudoaneurysm after penetrating injury is a rare cause of acute forearm compartment syndrome. Although minor penetrating injuries tend to be underestimated, this type of injury can cause subsequent serious pathological conditions.