Bosworth fracture-dislocation is a rare fracture-dislocation of the ankle joint with the proximal part of the fibula entrapped behind the tibia. The patients foot displays severe external rotation. For this case, we attempted close reduction, but because it failed, open reduction was performed using syndesmotic screws. X-rays do reveal characteristics of this dislocation, but it is often overlooked in examination, resulting in inappropriate treatment and disastrous outcome. This report discusses a case of Bosworth fracture-dislocation experienced and related studies.