Ankylosing Spondylitis (Sacroiliitis)

  • Usually presents by 40 years old
  • Early morning pain, relieved with activity
Exam:  Positive Schober Test
  • Place mark at Dimples of Venus
  • Place another mark 15 cm. above
  • With flexion of LS-Spine, marks should separate additional 5 cm
  • High ESR
  • HLA B27 90% sensitive but not specific
Diagnosis:  Sacroiliac plain films
See posting Back Pain & Neck Pain.