### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
what does mild indentation of the thecal sac at l2-l3 and l3-l4 mean? multilevel spondylosis? scoliosis (kyphoscoliosis) ( idiopathic )? osteitis condensans ilii bilaterally? small air in sacroiliac joints bilaterally? reactive bone at the iliac margins of the sacroiliac joints bilaterally? conus ends at l1-l2? levoscoliosis (lumbar) with apex at l3? sacroiliitis? I am 32 year old female with all these things wrong with me. I had spine surgery from t11-l5. and MRI shows quoting notes there are postsurgical changes of the left lateral rod and vertebral body screw fixation from t11-l3 without change in hardware alignment

### output:

Mild indentation of thecal sacs are no problem unless some underlying pathology is active and may further produce selling or indentation as a result of inflammatory/space occupying selling. In your case since spine has been fixed internally by plate/screw it shall prevent mechanical torsion in that area. Under cover of anti-inflammatory Chat Doctor. My only advice would be you keep on some form of medication for arthritis and avoid violent bending or jerk to back. Your physician should evaluate the nature of arthritis viz--osteoarthritis-infective arthritis, rheumatoid or septic or secondary to trauma-- all said and done your doc. Should keep you covered up with periodical (3 monthly) evaluation to keep underlying pathology contained. He should evaluate neurological power of limbs from time to time