“…Data were gathered from the latest Cochrane Database of Systematic Reviews 2005, Issue 2. The last amendment of the review on injection therapy for subacute and chronic benign low back pain was made in 1996 [70], on surgery for lumbar disc prolapse in March 1997 [36], on radiofrequency denervation in April 2002 [71], on prolotherapy in January 2004 [98], and on surgery for degenerative lumbar spondylosis (including lytic spondylolisthesis) in February 2005 [37]. Surgery for specific pathologies such as tumours, trauma, infection, and myelopathic syndromes were excluded.…”