Pediatric Lisfranc Fracture-Dislocation: A Case Report

Lisfranc injury is extremely rare in the pediatric population and little evidence exists to guide the treatment at this age. We present a clinical case of a rare Lisfranc fracture-dislocation at pediatric age. An 11-year-old male was admitted to the emergency department, in October 2020, after a motorcycle incident. He was diagnosed with a Lisfranc fracture-dislocation of the right foot: Myerson type B2. Fourteen days after the injury, he underwent surgical treatment with open reduction and internal fixation with 3.5 mm solid fully threaded screws. At 18 months postoperative, the patient was asymptomatic, didn't present any limitations, presented an American Orthopedic Foot and Ankle Score (AOFAS) midfoot score of 93%, and excellent results of the 12-Item Short Form Survey (SF-12) - PCS-12 (Physical Score): 52.52277 and MCS-12 (Mental Score): 62.12820. The foot maintained a good configuration without significant malalignment, however, a screw breakage occurred before the implant removal, and a premature physeal arrest developed on the base of the first metatarsal bone. Clinical and radiographic evaluation of Lisfranc injuries may be challenging in the pediatric population. Regarding the treatment, anatomical alignment is mandatory, and good or excellent outcomes have been achieved with anatomical reduction and internal fixation. We recommend early implant removal to avoid screw breakage and avoid the use of screws in the first metatarsal physis, due to the risk of premature physeal arrest.