I was diagnosis w/ lumbar spondylolysis, bilateral nerve root impingement and radiculitis w/ l5 being slipped forward. surgery or long-term pain management?

Surgery : Lumbar spondylosis, nerve root impingement and radiculitis may or may not be indications for surgery, but topped with a slipped vertebrae and the reported symptoms of chronic pain and neurological deficit (weakness as listed in your profile) suggest surgery may be your best long-term option. Non-surgical options cannot reverse or slow progression and would only serve as a temporary fix.

Surgery: Sometimes it solves with pain control, pain procedures (epidurals w/local anesthetic and steroids). After reducing the inflammation the disk if it is intact could slip backwards in place. The spondilosis is a chronic condition similar to the osteoarthritis that can not be cured like the disk herniation.I think you meant spondylolisthesis. Surgery can be efficient but also can have complications.