Pain Worse with Standing

45 year old female. Bilateral low back pain. Not currently radiating down the leg but has in the past (2 years ago).  Pain is stiff when sitting, but if patient stands for 15 minutes it will start to hurt and get up to a 9/10.  Palliative is sitting.  Provocative is standing and lumbar extension.

Patient has done Crossfit but recently stoped because of symptoms although crossfit was only painful with heavy squats + deadlifts, and overhead squats+snatches.

Lumbar and hip tests were slightly limited but after 3 visits everything is 100 percent.  Moved down the chain and found that dorsiflexion was 2 inches on the right and 3 inches on the left. Two treatments in the right is 3.5 and the left is 4.25

We have no symptomatic improvement.

Patient has seen at least 5 other providers for this.  Patient has had 2 MRI’s that she came with on the initial.  On the imaging she has annular tears at 3 different levels, a spondlyolisthesis at L5, mild scoliosis and mild dural ectasia.

I overlooked the dural ectasia the first time, probably because it wasn’t in the impression.  As I looked into it I found that people with this condition feel worse when standing up.  Can this be the reason the symptoms feel better when sitting? Or am I not respecting the three annular tears?