Orbital Roof Fracture Ct

Orbital roof fracture icd 801 01 etiology.

Orbital roof fracture ct.

Orbital roof fractures epidemiology. Communited mildly depressed left orbital roof fracture. Isolated orbital roof fractures in adults are uncommon comprising 12 19 of all orbital wall fractures. Orbital roof fractures are more common in childhood as the frontal sinus has not yet pneumatised therefore all posterior force to the superior orbital rim is transferred to the anterior cranial base.

Clinical diagnosis is based on meticulous examination of the eye including patient vision and palpation of the orbital aperture. They are usually seen in patients with pneumatization of the orbital roof 1 5. Most roof fractures are associated with other orbital fractures and result from significant head trauma as a high degree of force is required to fracture this portion of the orbit. Pure superior blowout fractures without associated orbital rim fracture are uncommon.

Another mechanism of injury is a blow in fracture where there is an inferiorly directed supraorbital force. Fractures where fragments involve the posterior third of the orbit are susceptible to subsequent optic nerve disorders. Most orbital roof fractures are blow in fractures displacement of the bone is towards the orbit. The floor is likely to collapse because the bones of the roof and lateral walls are robust.

A review of the current literature. Ajnr am j neuroradiol. Additional stretching of the right optic nerve is present. Diagnosis and imaging of orbital roof fractures.

Axial ct scan in the plane of the optic nerve shows multiple fractures of the lateral orbital wall and the greater wing of the sphenoid of the right side. Fracture of the left zygomaticomaxillary attachmnet with fracture of the anterior and lateral maxillary walls inferior orbital rim fracture and left maxillary. 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. Rothman mi simon em zoarski gh et al.

This frequently causes downward and forward displacement of the globe. Angulated displaced fractures fragments are seen projecting downwards within the orbit indenting the superior rectus muscle. An isolated orbital roof fracture is considered a rare finding. Superior blowout fracture of the orbit.

It is estimated that 1 9 of facial bone fractures involve the orbital roof 2 3 in adults orbital roof fractures are the least common orbital fracture and generally are encountered in males approximately 90 male predominance between 20 and 40 years of age after a motor vehicle.