Excised Benign tumor and lamenectomy

My husband had a large benign tumor removed from his thoracic spine. They did a lamenectomy with no support put back. It has been 3 years and he has had 2 MRI's so physically everything checks out. He is having the same symptoms he was having prior to surgery with chronic pain level 8+ all the time. He stopped lyrica and Cymbalta because of side effects. We are all miserable and would like some guidance as to where to go from here for some refief and normalcy.