AN INJURY to the dura which permits cerebrospinal fluid to escape into the wound during the course of a mastoidectomy might seem alarming because of the serious implication of impending meningitis. Such an incident, however, seldom has been of great significance in our experience. It actually has been of no more importance than has been an injury of the sigmoid sinus. Neither complication is desired and should be avoided. This, however, is not always possible, especially when extensive pathologic changes involving the dura or the wall of the sinus are encountered.
Fortunately, both incidents are of rare occurrence, but when such injuries occur, unless a precedent has been established for management, the surgeon could be expected to feel considerable anxiety.
REVIEW OF THE LITERATURE
In the cases reported in the literature the cerebrospinal fluid escaped through the ear or the adjacent mastoid structure chiefly in consequence of trauma and fracture
H. I. LILLIE, ARTHUR A. SPAR. ESCAPE OF CEREBROSPINAL FLUID INTO THE WOUNDS OF OPERATIONS ON THE TEMPORAL BONE. Arch Otolaryngol. 1947;46(6):779–788. doi:10.1001/archotol.1947.00690020796005