Background: Open fractures of the femoral shaft, particularly Grade 3A types, present complex challenges necessitating meticulous management strategies to mitigate complications and achieve successful outcomes. This case report describes the comprehensive management of a Grade 3A open femoral shaft fracture complicated by infected non-union in a 50-year-old male following a motor vehicle accident.

Case Presentation: The 50-year-old male presented to the Emergency Department following a motor vehicle accident. His chief complaint was a Grade 3A open fracture of the right femoral shaft. Initial treatment involved emergent debridement and temporary stabilization with an external fixator to minimize infection risk and maintain fracture alignment. Subsequent interventions included plate and screw fixation with bone grafting to promote healing. However, implant failure and infected non-union necessitated reoperation, including osteotomy and external fixation, augmented with a bone spacer and antibiotics. Long-term follow-up revealed successful resolution of infection, restoration of limb function, and progressive bone healing with physiotherapy. Challenges such as implant failure and infection recurrence were managed through staged surgical interventions and vigilant monitoring.

Discussion: Despite initial setbacks such as implant failure, the staged surgical interventions, including debridement, osteotomy, and bone grafting, coupled with rigorous postoperative care, led to substantial improvement in the patient's condition, highlighting the critical role of multidisciplinary collaboration and adaptive treatment strategies in achieving favorable outcomes.