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.

This is reflected in the demographics. Getting hit with a baseball or a fist often causes a orbital blowout fracture. Orbital fractures of this size have a high incidence of subsequent significant enophthalmos. Left orbital floor fracture is depressed by 3 5 millimeters.

The blowout fracture is the most common type of orbital fracture and is usually the result of trauma. 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. Thin cut coronal reconstructions are actually preferred to. 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. It is more prevalent in young men. With blow out fractures of the orbital floor ct scanning can directly depict the degree of enophthalmos if any. 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. Orbital blowout fractures are usually the result of a direct blow to the orbit which causes a sudden increase in intraorbital pressure. 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. Hemorrhage partially fills the left maxillary sinus.

A blowout fracture of the orbital floor is defined as a fracture of the orbital floor in which the inferior orbital rim is intact. Large fractures involving at least half of the orbital floor particularly when associated with large medial wall fractures determined by ct. Clinical recommendations for repair of isolated orbital floor fractures. Orbital floor fracture also known as blowout fracture of the orbit.

1 0 1 5mm axial ct scans of the orbit with coronal reconstruction. Bilateral frontal intraparenchymal hemorrhages. 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. This fracture can also affect the muscles and nerves around the eye keeping it from moving properly and feeling normal.

There are three main types of orbital fractures that we see. Three dimensional ct reconstruction helps define facial bone anatomy and fractures clearly.