Microendoscopic tubular retractor system for lumbar intervertebral disc herniation: Report of 95 cases

Objective: To investigate the efficacy of microendoscopic tubular retractor system(METRx) in treatment of lumbar intervertebral disc herniation.Methods: Microendoscopic tubular retractor system was applied to excise the nucleus pulpous through the rear route.Results: All the cases were followed up for 4 months to 3 years.According to the Nakai scale,the outcome was excellent in 71 cases,good in 15 cases and fair in 9 cases.No symptom aggravation cases were observed.The fine rate was 90.5%.Conclusions: METRx has a satisfactory short-term efficacy in treatment of lumbar disc herniation.