I am seriously considering getting the surgery (lumbar fusion) to eliminate my sciatica symptoms. The ESI I got in September has aleady worn off. Worried about taking time off work for surgery. How long should I expect to be out of work if I have a desk job? Speaking with others recently, was told that it may be 6-8 weeks, maybe less. Also, they said they did not have to have any PT. I have spondylolisthesis L4 L5.