1996 New York criteria for ankylosing spondylitis

Diagnostic criteria

• limitation of motion of the lumbar spine in all 3 planes
  • anterior flexion
  • lateral flexion
  • extension
• pain at the dorsolumbar junction or in the lumbar spine
• limitation of chest expansion to 1 inch (2.5 cm) or less measured at the level of the 4th intercostal space

More general terms

• criteria