A new technique for attaching a stereotactic frame to the head: Technical note

The aim of this study was to develop a device which allows an intermediate, painless fixation of a stereotactic frame prior to definite pin fixation. To stabilize the stereotactic frame rubber coated metal springs were used. By testing the springs on 30 volunteers with different head diameters and c ircumferences the optimal shape was determined. In the clinical setting 15 patients undergoing stereotactic surgery were tested, stability and patient 's convenience were measured. The procedure was well tolerated and measurem ents revealed symmetric distances between head and frame. Therefore these m etal springs are a useful accessory to the Leksell stereotactic system.