min - Minimally Invasive Neurosurgery, Table of Contents Minim Invasive Neurosurg 2008; 51(4): 247-248DOI: 10.1055/s-2008-1080907 Technical Note © Georg Thieme Verlag KG Stuttgart · New York A New “γ-Extension” Device for the Brown-Roberts-Wells Arc System Allowing Full Lateral Stereotactic Approaches T. Birbilis 1 , 2 , A. Shakal 1 , V. Bockermann 1 1Neurosurgical Department, Georg-August University of Goettingen, Goettingen, Germany 2Neurosurgical Department, University Hospital of Alexandroupolis, Alexandroupolis, Greece Recommend Article Abstract Buy Article Key words Brown-Roberts-Wells arc system - stereotactic - tool - lateral approach Full Text References References 1 Rohlfing T, Maurer Jr CR, Dean D, Maciunas RJ. Effect of changing patient position from supine to prone on the accuracy of a Brown-Roberts-Wells stereotactic head frame system. Neurosurgery. 2003; 52 610-618 2 Birbilis Th, Bockermann V, Markakis E. A pair of clamps for a safe removing and repositioning of β and γ angular settings of Brown-Roberts-Wells stereotactic system during operation. Minim Invas Neurosurg. 2001; 44 47-49 3 Birbilis Th, Bockermann V, Markakis E. Determination of the burrhole-site using the BRW-stereotactic system. A simple marking technique. Minim Invas Neurosurg. 1997; 40 27-29 4 Birbilis Th, Bockermann V. A cover plate –“draping screen“designed for increased sterile conditions during the use of the Brown-Roberts-Wells stereotactic system. Technical note. Hell Neurosurg. 2001; 8 157-160 Correspondence T. Birbilis Neurosurgical Department University Hospital of Alexandroupolis 68100 Dragana Alexandroupolis Greece Email: mpirmpil@otenet.gr