Peripheral nerve injuries of the lower extremities are not frequent. The most common are traction injury of the peroneal nerve at the knee level or iatrogenic trauma of the pelvic nerves during abdominal surgery. Civil sharp injuries are rare.Indications for surgical revision follow the general rules of nerve surgery. Sharp injury should be treated as soon as possible, ideally within 72 hours. Closed lesions are indicated for surgery if a complete denervation remains unchanged three months after the injury. Best results can be achieved within six months from the injury. Irritations caused by bone fragments or scarring or by iatrogenic injury (clamps, cement, screws, etc.) may be revised later. However, the most important is early clinical examination in a specialized neurosurgical department.