Atlantoaxial dislocation associated with stenosis of canal at atlas.

Three rare cases of stenosis of spinal canal at the level of atlas associated with atlantoaxial dislocation are presented. An atlantoaxial lateral mass fixation with plate and screws after posterior midline bony decompression was successfully performed in these cases

Migration of craniotomy flap: an unusual complication.

An unusual complication following a craniotomy is reported. The free bone flap migrated over the adjacent bone four weeks following surgery and needed operative readjustment. The probable causes for such a complication are analysed and discussed

Suprasellar arachnoid cyst presenting with bobble-head doll movements: A report of 3 cases

We report a series of three patients with suprasellar arachnoid cysts who presented with a rare 'bobble-head doll' syndrome. The abnormal head movements improved after surgical evacuation of the cysts in all the three cases. Various pathophysiological mechanisms involved in the bobble-head doll syndrome are discussed. The literature on suprasellar arachnoid cysts is briefly reviewed