x-ray of lumbosacral spine: bony ankylosis on both sides at L1-L2
x-ray of lumbosacral spine: bony ankylosis on both sides at l1-l2
x-ray of lumbosacral spine: bony ankylosis on both sides at L1-L2
x-ray of lumbosacral spine: bony ankylosis on both sides at l1-l2