Lumbosacral traumatic meningocele

THE TRAUMATIC AVULSION of cervical nerve roots is a well-recognized and not infrequent clinical entity.l.2 Its characteristic myelographic features created by the formation of traumatic meningoceles which protrude through the intervertebral foramina and communicate with the subarachnoid space have been well described.3~4 I n contrast, traumatic avulsion of lumbosacral nerve roots is a rare entity, there being only four previous reports of six cases showing characteristic myelographic findings.5-8 This report represents the seventh case of this entity, a case which has the added unusual feature of nerve root avulsion occurring on the side opposite sacral and pelvic fractures.