Objective: To measure the surgery outcome of patients at 6, 12 and 24 weeks using the Oswestry Disability Index and the Euro Quality of Life (EuroQol).

Materials and Methods: Ninty-three out of a total of 311 patients who underwent spinal surgery at Bangkok Hospital between August 2010 and June 2011 and had completed their 6 months follow up.

Results and Conclusion: The study found that surgery did improve the functionality of patients who had back pain due to  radiculopathy, lumbar spinal stenosis, and herniated nucleus pulposus. Measured by ODI and Quality of Life (QOL) methodology, the treatment outcomes showed significant improvement.