Blow out fracture of orbit most commonly leads to fracture of: (A) Lateral wall, (B) Roof of orbit, (C) Medial wall of orbit, (D) Posterior-medial wall of floor
Answer is D. This fracture usually occurs where the bone is thinnest, along with the paper-thin floor of the orbit over the maxillary sinus. The ring-shaped bony orbital rim usually remains intact. The fracture can result in protrusion and impingement of orbital fat and the inferior rectus and its sheaths in the fracture gap.