Fractures Orbital Roof And Blowout

However if the roof of the orbit is thin a blow out fracture can occur upward into the frontal sinus.

Fractures orbital roof and blowout.

The bony orbit refers to the shell of bone which surrounds and protects the eye. 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. Orbital roof blow out fractures 531 blow out fractures usually involve the floor or medial wall of the orbit.

2 topics for discussion. Blowout fractures can occur through one or more of the orbital walls. The floor is likely to collapse because the bones of the roof and lateral walls are robust. The bony orbit is a.

Most commonly the inferior orbital wall i e. Christina gillespie md. Fractures orbital roof and blowout caused by a direct blow to the eye. Orbital floor forms roof of maxillary sinus location of more blow out fractures due to inherent weakness of bone overlying maxillary sinus 13 13.

Different types of blowout fracture. Three important apertures at the apex of bony orbit optic canal superior orbital fissure inferior orbital fissure 14. The comparatively thin bone of the floor of the orbit. Although the bone forming the medial wall is thinnest it is buttressed by the bone separating the ethmoidal air cells.

Orbital injuries warranting surgical intervention are infrequent in the paediatric population but blowout trap door fractures are unique in children and may constitute a relative surgical. Orbital fracturesorbital blowout fractures 1 orbital fractures orbital blowout fractures. 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. Inferior blowout fractures are the most common.

The frontal sinus is often involved. Two cases of orbital roof blow out fractures are presented including plain films and tomographic findings. Types of fractures. 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.

Inferior floor medial wall lamina papyracea superior roof lateral wall. Another mechanism of injury is a blow in fracture where there is an inferiorly directed supraorbital force. Break in the floor or the orbital socket resulting from a direct blow to the eye. Signs and symptoms.