Hip XRay in Osteoarthritis

Aka: Hip XRay in Osteoarthritis, Pelvis XRay in Osteoarthritis, Osteoarthritis Hip XRay, Osteoarthritis Pelvis XRay

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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

IV. Efficacy

  1. XRay is low yield for Hip Osteoarthritis (36% Test Sensitivity)
    1. Kim (2015) BMJ 351:h5983 +PMID:26631296 [PubMed]

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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