What is the best imaging modality to assess in detail orbital injuries?
CT. Multi-plane resconstructions and 3D reconstructions illustrate beautifully the injuries, including rectus muscle entrapment.
What does an tripod fracture comprise of?
1. Fracture of the zygomatic arch 2. Fractures of the inferior orbital rim and anterior and posterior maxillary sinus walls 3. Fracture of the lateral orbital rim
Linear lucency at the superior aspect of the left orbital - intra-orbital emphysema.
Inferior orbital wall intact.
CT - intra-orbital air clearly delineated, along with medial orbital wall (laminae papyracea) fracture from which the air has leaked into the orbit.