II. Views

  1. Anteroposterior Pelvis (AP Pelvis)
    1. Shows arthritic changes in hips and sacroiliac joints

III. Findings

  1. Hip Joint
    1. Superolateral joint space narrowing
    2. Subchondral sclerosis
    3. Subchondral cyst formation
    4. Irregularity of femoral head
  2. Sacroiliac Joint
    1. Bridging osteophytes between ilium and Sacrum
    2. Subchondral sclerosis
    3. No ankylosis (joint space collapse) or erosions
      1. Contrast with Ankylosing Spondylitis
      2. Contrast with Psoriatic Arthritis
      3. Contrast with Reiter's Syndrome

V. References

  1. Brower (1998) Arthritis Black and White, Saunders
  2. Klippel (1997) Primer Rheumatic Diseases, AF
  3. Swagerty (2001) Am Fam Physician 64(2):279-86 [PubMed]

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