XXXX after repair of maxillary and naso-orbito-ethmoid fractures: a case study.

@entity2694 @entity1 @entity4 @entity174
OBJECTIVE: The @entity2694 results from damage to the nerves passing through the superior orbital fissure. In the present case, the @entity2694 developed after repair of @entity174 , although the symptoms were not observed before surgery and no obvious cause was found. To investigate the aetiology of this syndrome, we examined the superior orbital fissure anatomically. METHODS: We measured the width of superior orbital fissure on the horizontal plane including the optic canal using the computed tomography (CT) scans of other @entity1 and cadavers. RESULTS: The results indicated that the width was 3.73+/-1.64 mm in the CT scans of @entity1 and 3.21+/-1.09 mm in the cadavers. There was no significant difference between the width in the CT scans and cadavers. The width in the present @entity1 on the affected side was 1.6mm, that is relatively narrow. CONCLUSION: After operation, narrow superior orbital fissure may reduce the tolerance to compression of the nerves by @entity4 . We consider the narrow superior orbital fissure as a risk factor for @entity2694 . When the superior orbital fissure is congenitally narrow, the surgeons should try to avoid excessive pulling of the bone fragment and compression of the orbital tissue during repair of the @entity174 .
