I had my fusion 4 years ago at Mayo Clinic. I had a two level fusion (L4-S1). We discussed addling L3 but both doctors were reluctant to do that. They said that it would make bending more difficult for me. Overall, I am happy with the surgery and with my outcome. I no longer have pain from the levels that were fused. I have a very degenerative spine and as a result, I do have sciatic pain at the L3 level in my spine. So far, I am able to relieve this pain by sitting for a few minutes. I do need to get a new chair for my living room. Mine does not support my spine well enough. I would also like to get back to the pool for water exercises and walking in the water. This activity really helps to strengthen your lower back.