Best Imaging For Orbital Floor And Maxillary Fracture

The orbit is formed by 7 bones.

Best imaging for orbital floor and maxillary fracture.

Blunt force trauma tends to cause fractures along three lines of weakness in the mid face. One characteristic of all types of le fort fractures is the fracture of the. Zygomatic sphenoid maxillary frontal lacrimal palatine and ethmoid. Maxillary bones upper jaw.

Orbital floor fracture with significant soft tissue entrapment a so called trapdoor fracture. Inferior blowout fractures are the most common. Another common fracture is the orbital floor fracture or blowout fracture. The orbit is one of a pair of bony cavities each housing the globe and associated structures.

If the patient is upright when the film is taken an air fluid level can often be seen in the maxillary sinus which may indicate fracture of the maxillary sinus orbital floor. Orbital blowout fractures seen in the emergency setting commonly occur after trauma. Fractures of the orbit may be seen in different scenarios of direct and indirect trauma to the globe orbital facial or cranial bones. However rare cases of nontraumatic orbital blowout fractures have been reported secondary to sneezing or nose blowing we describe a case of a nontraumatic orbital floor fracture that was diagnosed on imaging and affected patient management.

Orbital fat prolapses into the maxillary sinus and may be joined by prolapse of the inferior rectus muscle. Direct orbital floor fracture. Mid face le fort fractures. 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.

Waters view best displays inferior orbital rims nasoethmoidal bones and maxillary sinuses. A study by huang et al indicated that in patients with head trauma lack of maxillary hemosinus on conventional head ct scanning predicts the absence of orbital floor fracture the negative. Note the relatively small amount of herniated tissue and the air fluid level in the maxillary sinus. Inferior floor medial wall lamina papyracea superior roof lateral wall.

Getting hit with a baseball or a fist often causes a orbital blowout fracture. The usual mechanism is a blow to the eye with the forces being transmitted by the soft tissues of the orbit downward to the thin floor of the orbit. Blowout fractures can occur through one or more of the orbital walls. The floor is usually the path of least resistance and fractures downward into the maxillary sinus.

This is a rim fracture that extends into the lower socket.