x-ray of lumbosacral spine: bony ankylosis on both sides at L3-L4
x-ray of lumbosacral spine: bony ankylosis on both sides at l3-l4
x-ray of lumbosacral spine: bony ankylosis on both sides at L3-L4 (procedure)
x-ray of lumbosacral spine: bony ankylosis on both sides at l3-l4 (procedure)