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To investigate the clinical outcomes of transforaminal endoscopic system(TESSYS) for discogenic low back pain(DLBP).62 consecutive patients with one-level DLBP applying to the including criteria underwent TESSYS from January 2010 to December 2013. These patients included 38 males and 24 females with a mean age of 42.7 ± 5.4 years (range, 18–73 yr) and a mean follow-up of 26.8 ± 4.2 months (range,...