Dural bridge sutures to prevent sinking of dural substitutes: technical note.

Introduction: Following Simpson Grade 1 excision of large convexity meningioma there is often a need for synthetic dural substitutes.

Discussion: One problem with some of these grafts is that they lack tensile strength when wet and therefore sink into the cavity left following removal of the meningioma.

Conclusion: A simple method to prevent 'sinking' or sagging of such synthetic dural grafts is described and illustrated.

'Surgical' causes of benign intracranial hypertension.

Benign intracranial hypertension is a clinical diagnosis linked to a number of medical and surgical disorders. A common aetiology has not yet been established. It would seem, however, that many, if not all, of these cases can be related to some degree of cerebral venous outflow obstruction.