atment of central lumbar stenos's. Multiple lammotemy compared with total lamlnecterny. J. Bone Joint Surg. Br. 76. 386-392 (1993). 88. Spetzger. U.. Bertalanffy. H.. Ranges. M. H.& Gilsbach. J. M. Unilateral lammotomy for bilateral decompression of lumbar spinal stenos's. Part II: Clinical experiences. Alt