Ct Of Orbital Floor Fracture

This is when a blow or trauma to the orbital rim pushes the bones back causing the bones of the eye socket floor buckle to downward.

Ct of orbital floor fracture.

Different types of orbital fractures can occur since the rim of the socket is made of fairly thick bones while the floor and nasal side of the socket is paper thin in many places. The floor is likely to collapse because the bones of the roof and lateral walls are robust. Orbital floor fracture also known as blowout fracture of the orbit eye socket. An orbital blowout fracture is a traumatic deformity of the orbital floor or medial wall typically resulting from impact of a blunt object larger than the orbital aperture or eye socket most commonly the inferior orbital wall i e.

Left orbital floor fracture is depressed by 3 5 millimeters. Orbital blowout fractures are usually the result of a direct blow to the orbit which causes a sudden increase in intraorbital pressure. No evidence of rectus muscle entrapment retrobulbar hemorrhage or proptosis. Getting hit with a baseball or a fist often causes a orbital blowout fracture.

Thin cut coronal reconstructions are actually preferred to. 1 0 1 5mm axial ct scans of the orbit with coronal reconstruction. Direct visualization of extraocular muscles aids in determining if the inferior rectus muscle is hooked or entrapped in an orbital floor fracture if a similar injury to the medial rectus muscle against a medial wall fracture is. Bilateral frontal intraparenchymal hemorrhages.

This is reflected in the demographics. Large fractures involving at least half of the orbital floor particularly when associated with large medial wall fractures determined by ct. With blow out fractures of the orbital floor ct scanning can directly depict the degree of enophthalmos if any. There are three main types of orbital fractures that we see.

These fractures occur in the bony outer edges of the eye socket. Orbital fractures of this size have a high incidence of subsequent significant enophthalmos. Clinical recommendations for repair of isolated orbital floor fractures. A blowout fracture of the orbital floor is defined as a fracture of the orbital floor in which the inferior orbital rim is intact.

Hemorrhage partially fills the left maxillary sinus. Orbital floor fracture also known as blowout fracture of the orbit. The blowout fracture is the most common type of orbital fracture and is usually the result of trauma. Three dimensional ct reconstruction helps define facial bone anatomy and fractures clearly.

Orbital floor fractures may result when a blunt object which is of equal or greater diameter than the orbital aperture strikes the eye or on the cheek 1. Left orbital floor fracture.