I had a decompressive laminectomy in 2019. ended up with a spinal leak. spinal leak did not heal. was repaired 3 months later. i've had chronic back pain. my recent mri says there are chronic postsurgical changes of laminectomy. what does it mean?

The films reveal the consequences of your original surgery and postoperative complications. There is likely scarring and perhaps the presence of arachnoiditis. These findings likely explain the persistent chronic low back pain. Advise you avoid any invasive procedures, as these can worsen the situation. Get physical therapy and learn back exercises.