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Objective:To evaluate the role of anterior lumbar interbody fusion in treatment of failed back surgery syndrome, the authors present a retrospectively analysis of the clinical & radiological results of anterior lumbar interbody fusion. Methods:Between September 2000 and September 2001, twenty two patients underwent anterior lumbar interbody fusion for treatment of failed back surgery syndrome. We analyzed clinical & radiological changes. The mean follow-up period was 19 months. Results:Overall satisfactory outcome was 90%. The mean VAS was changed from 8.3 to 3.7. The mean Oswestry Disability Index(%) was changed from 70 to 33. The fusion rate was 86%. There were 2 complications; wound infection, sympathetic dysfunction. Conclusion:We conclude that the anterior lumbar interbody fusion seems to be a safe and favorable method in treating selective patients with failed back surgery syndrome. Key words:Failed back surgery syndrome;Anterior lumbar interbody fusion.