39 year old male came in today with chief complaint of not being able to move his neck. Patient was diagnosed with Ankylosing spondylitis in his 20s. Up to a year ago, although his range of motion was compromised but still he was able to move the neck somewhat , however since then his range of motion has been getting worse, at this point he can not move the neck at all; cervical range of motion=0 degree in all axis. He is other wise a healthy male. He takes no medications and he receives regular chiropractic treatments.