Pain may improve, stay the same or worsen after fusion surgery. The majority of people will see improvement in there pain, but few people will have complete pain relief. Unfortunately spine surgery does not give you a new uninjured back. I would discuss what the likelihood of you improving with your surgeon.
Spinal fusion surgery is usually done through an open traditional technique causing significant skin, muscle and bone damage. Recently open traditional fusion surgery is being replaced by percutaneous endoscopic fusion techniques I call Endoscopic Lumbar Interbody Fusion (ELIF). These surgeries appear to have less bleeding, soft tissue and bone damage compared to open traditional fusion surgery. Due to less soft tissue and bone damage these endoscopic surgeries appear to have less post-operative pain and a quicker recovery.
For more information on percutaneous endoscopic fusion surgery please contact Executive Spine Surgery. Good Luck!