Ankle lateral ligament complex injury is common. Traditional ‘Brostrum’ repair, performed either open or arthroscopically, still has a protracted post-operative period. The ‘Internal Brace’ provides a scaffold for the ligament repair and acts as a ‘check-rein’ preventing further injury. 16 patients with ankle instability and injury to the Anterior-Talo-Fibular-Ligament (ATFL) confirmed on MRI were identified. All had completed a period of conservative treatment. All had symptoms of pain in the region of the ATFL and described a feeling of instability. Surgery was performed under general anaesthetic and regional popliteal block.