New York Criteria for Ankylosing Spondylitis

Is there limitation in motion of the lumbar spine in anterior flexion?

Is there limitation in motion of the lumbar spine in lateral flexion?

Is there limitation in motion of the lumbar spine in extension?

Is there a history of pain, or the presence of pain, at the dorsolumbar junction?

Is there a history of pain, or the presence of pain, in the lumbar spine?

Chest expansion, measured at the level of the fourth intercostal space

Left sacroiliac joint

Right sacroiliac joint