The incidence of accidental trauma in children is on the rise, and children have a heavy learning task. For fractures of the extremities, a fixation treatment method that can effectively fix them without damaging the epiphysis and with a short hospital stay is needed. Children are not a smaller version of adults, and their limb fractures have their own characteristics and cannot be treated in accordance with adult treatment methods. Protecting the epiphysis from damage and the blood supply to the bone from being destroyed are two prerequisites that must be considered in the treatment of long bone fractures in children. Traditionally, the treatment of long bone fractures in children has been based on manipulation and plaster fixation, or traction and plaster fixation. In the last 20 years, with the recognition of the advantages of other fixation methods, especially in terms of reducing the duration of fracture treatment, pediatric orthopedic surgeons have increasingly begun to use surgical and various instrumentation methods of fixation. Reducing complications, reducing treatment costs, shortening hospital stays, and maximizing radiographs are increasingly becoming the treatment philosophy of pediatric orthopaedic surgeons. Pediatric orthopaedic surgeons in various countries have experimented with various treatment options and now generally favor surgical internal or external fixation for patients with unstable or systemic multiple injuries with long bone fractures. Recent studies also suggest that such treatment is not only economically but also psychologically helpful to patients and their families. TEN fixation has the advantages of ease of operation, minimal injury, no involvement of the epiphysis, good repositioning, rapid recovery, easy early rehabilitation, and few complications. It is a minimally invasive, safe, simple and fast treatment method especially for children and adolescents with femur fractures, other long bone fractures, multisegmental fractures and compound injuries. This technique has been widely accepted by pediatric orthopedic surgeons worldwide as the treatment of choice for long bone fractures in children.