Evaluation of Flexible Intramedullary Nail in Fracture Both Bone Forearm in Adolescents

Background: The second most frequent type of fracture in adolescents’ group of age is a fracture of both the radius and ulna bones of the forearm. Falling onto a hand that is outstretched is the most frequent mechanism of injury. Objective: This study aimed to assess the clinical and radiological outcomes of using a flexible intramedullary nail, also known as a Nancy nail, to treat diaphyseal forearm fractures in adolescents who have both bone forearm fractures. Methods: Twenty-one cases, aged from 10 to 19 years with closed displacement fractures of the shaft of both forearm bones were included in this research. All the cases underwent surgery between September 2022 and March 2024 at Menoufia University Hospital and El-Bagour Specialized Hospital. Ten cases were handled in the orthopaedic department of El-Bagour General Hospital, while eleven cases were handled in the orthopaedic department of Menoufia University. The minimum follow-up period was six months. Results: All the cases' bones were united (100%) and there was a degree of flexion and extension loss at the elbow and wrist, a percentage of loss of supination and pronation, a high rate of infection (4.8%), and a high rate of sequelae (14.3%). Anderson's score was excellent for the mechanism of injury (fall on outstretched hand) and the removal of the implant (12 weeks), while it was satisfactory for the associated fractures and the satisfaction function (moderate) (66.67%). These factors were significant among the cases under research. However, the other variables under investigation were not significant. Conclusion: Adolescent diaphyseal forearm fractures can be stabilized by intramedullary fixation, which produces good functional results. Cases between the ages of 10 and 19 years benefit most with flexible intramedullary nailing (FIN) for displaced, closed fractures. It is advised to use standardized evaluation scales for consistent outcome assessment.