Floor Of Right Orbit

Fractures of the orbital floor are common.

Floor of right orbit.

A blowout fracture is a break in the floor or inner wall of the orbit or eye socket. A crack in the very thin bone that makes up these walls can pinch muscles and other structures around the eye keeping the eyeball from moving properly. Coronal ct scan soft tissue window showing right orbital floor fracture vertical elongation of right orbit reduction in size of right maxillary sinus and soft tissue swelling of the right. Bruising and limited eye movements secondary to swelling are common clinical presentations top.

It is formed by three bones. The medial wall is formed primarily by the orbital plate of ethmoid as well as contributions from the frontal process of maxilla the lacrimal bone and a small part of the body of the sphenoid. It is estimated that about 10 of all facial fractures are isolated orbital wall fractures the majority of these being the orbital floor and that 30 40 of all facial fractures involve the orbit. Orbital floor fractures may result when a blunt object which is of equal or greater diameter than the orbital aperture strikes the eye.

The floor or inferior wall separates the orbit and the maxillary sinus. Orbital blowout fracture or indirect orbital floor fracture. Coronal ct scan showing orbital floor fracture posterior to the globe. The anatomy of the orbital floor predisposes it to fracture.

Maxilla zygomatic bone and palatine bone. The globe usually does not rupture and the resultant force is transmitted throughout the orbit causing a fracture of the orbital floor. There was also the previously diagnosed impacted tooth in the floor of the maxillary sinus. The floor of the eye socket ruptures or cracks resulting in a small hole in the eye socket s floor which can trap some parts of the eye muscles and its surrounding.

This showed an additional finding of an impacted tooth in the floor of the right orbit. Coronal ct scan soft tissue window showing right orbital floor fracture vertical elongation of right orbit reduction in size of right maxillary sinus and soft tissue swelling of the right maxillary sinus mucosa. The most important landmark of the floor is the inferior orbital. The orbital surface of the maxilla makes up most of it while small portions of the zygomatic and palatine bones make up the rest.

Ct scan demonstrates common findings of a blow out fracture with evidence of a depressed right orbital floor bottom. Getting hit with a baseball or a fist often causes a blowout fracture. The floor is separated from the lateral wall by inferior orbital fissure which connects the orbit to pterygopalatine and infratemporal fossa. An example of a patient presenting with a right orbital floor blowout fracture.

This is a fracture of the paper thin floor of the eye socket with the bony rim surrounding the eye remaining intact.