Abstract
INTRODUCTION: An isolated sustentaculum tali fracture is a rare manifestation of orthopaedic injury involving the supporting bone of the middle calcaneal facet. Globally, the incidence is estimated to be less than 1% of all calcaneus fractures. PRESENTATION OF CASE: We reported a 42-year-old man with persistent ankle pain and instability on the right foot following a week after a motorcycle accident. The Computed tomography evaluation showed an avulsion of the medial sustentaculum tali on the right calcaneus bone. An open reduction and internal fixation procedure was performed using two cannulated cancellous screws applied across the lateral wall through the sustentaculum bone medially. The subjective postoperative evaluation showed that the patient responded well and gradually returned to daily routine activities without pain and instability. DISCUSSION AND CONCLUSION: Surgical approach using the cannulated cancellous screw to establish a firm fixation of sustentaculum tali fracture fragment into calcaneus bone and to prevent pathological movement.