RANDOMISED CONTROLLED TRIALS Vol. 40 - No. 4 EUROPA MEDICOPHYSICA 1 ISICO, Italian Scientific Spine Institute, Milan, Italy 2 Rehabilitative Medical Center, Asti, Italy 3 Dynamic Orthopaedic Orthosis, TLM Ltd. Gerenzano (Varese), Italy 4 Department of Surgery, University of Pavia, Pavia, Italy M. MONTICONE 1 , A. BARBARINO 2 , C. TESTI 3 , S. ARZANO 4 , A. MOSCHI 4 , S. NEGRINI 1 263 Submitted for publication August 20, 2003. Accepted November 29, 2004. EUR MED PHYS 2004;40:263-8