I was about 80 pounds overweight when I had my surgery. I was a healthy heavy person and my Doc said I was a great candidate for the surgery. I had a two level fusion-successful. I am currently on Jenny Craig and it is working for me-I don't want to blow any other discs out but my doc said it wasn't the weight that CAUSED it-I have degenerative disc disease. It was happening no matter what I weighed. Our bodies are better when at a healthy weight-no arguement there! Your weight will not keep you from getting releif from surgery though. DDD is going to happen-its origin has many starting points including family history.
Please, when you look for a doc, make sure they are Fellowship Trained, Spine Specialist!