Endoscopic endonasal-transantral surgery for an isolated orbital floor blow-out fracture in a pediatric patient.

Orbital floor blow-out fractures occur due to blunt trauma causing displacement of orbital contents to the maxillary sinus while the orbital rim is intact. Surgical repair of these fractures includes transantral, transorbital, or endoscopic endonasal approaches with or without implant use. We report a 12-year-old boy who presented with diplopia after blunt trauma to the head while playing football. Computed tomography revealed a left isolated orbital blow-out fracture. The patient was treated by a combined endoscopic endonasal-transantral approach and stability was restored with a urethral balloon catheter following endoscopic reduction of the fracture. Healing of the orbital floor was confirmed by an early computed tomography scan. This technique restores eye volume and function without the use of external incisions or implants.