x-ray of cervical spine: bony ankylosis of posterior elements at C2-C3 level
x-ray of cervical spine: bony ankylosis of posterior elements at c2-c3 level
x-ray of cervical spine: bony ankylosis of posterior elements at C2-C3 level
x-ray of cervical spine: bony ankylosis of posterior elements at c2-c3 level