Hip post-traumatic dislocation is a surgical emergency that is typically brought on by a high-energy trauma in a polytraumatized setting. Pure obturator hip dislocations are quite uncommon. It is regarded as an emergency, and a trained surgeon must address it within six hours in order to lower the danger of iatrogenic fractures and femoral head osteonecrosis. Here, we describe a case of a hip dislocation caused solely by the obturator muscle after a high-energy trauma. Under general anaesthesia, the patient received urgent closure reduction treatment. After two years, the functional and radiological findings were satisfactory and free of any avascular necrosis symptoms.