Ct Of Orbital Floor Fracture

Getting hit with a baseball or a fist often causes a orbital blowout fracture.

Ct of orbital floor fracture.

This is reflected in the demographics. These fractures occur in the bony outer edges of the eye socket. 1 0 1 5mm axial ct scans of the orbit with coronal reconstruction. The floor is likely to collapse because the bones of the roof and lateral walls are robust.

An orbital computed tomography the gold standard in trauma ct with contiguous thin axial and coronal sections should be ordered to confirm the diagnosis and plan for treatment see figure 1a. Hemorrhage partially fills the left maxillary sinus. No evidence of rectus muscle entrapment retrobulbar hemorrhage or proptosis. 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.

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. This fracture can also affect the muscles and nerves around the eye keeping it from moving properly and feeling normal. 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 fractures of this size have a high incidence of subsequent significant enophthalmos. Clinical recommendations for repair of isolated orbital floor fractures. Orbital floor fracture also known as blowout fracture of the orbit. A blowout fracture of the orbital floor is defined as a fracture of the orbital floor in which the inferior orbital rim is intact.

Left orbital floor fracture. Bilateral frontal intraparenchymal hemorrhages. There are three main types of orbital fractures that we see. Thin cut coronal reconstructions are actually preferred to.

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. It is more prevalent in young men. Left orbital floor fracture is depressed by 3 5 millimeters. Large fractures involving at least half of the orbital floor particularly when associated with large medial wall fractures determined by ct.

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. With blow out fractures of the orbital floor ct scanning can directly depict the degree of enophthalmos if any.