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Transient Osteoporosis of the Hip

 

synonyms:hip pain, 

Transient Osteoporosis of the Hip ICD-10

  • Consider:
  • M80.859A Other osteoporosis with current pathological fracture, unspecified femur, initial fracture
  • M80.851A Other osteoporosis with current pathological fracture, right femur, initial fracture
  • M80.852A Other osteoporosis with current pathological fracture, left femur, initial fracture

Transient Osteoporosis of the Hip Etiology / Epidemiology / Natural History

  • Middle aged men, women in the last trimester of pregnancy
  • Natural history: self-resolution

Transient Osteoporosis of the Hip Anatomy

Transient Osteoporosis of the Hip Clinical Evaluation

  • Groin pain with no history of trauma. Pain with weight bearing and at rest. Can be severe.
  • Mildly decreased ROM.

Transient Osteoporosis of the Hip Xray / Diagnositc Tests

  • MRI: demonstrates bone marrow edema in the femoral head and neck.   Highly increased signal throughout the femoral head and neck on STIR images. (Urbanski SR, JBJS 1991;73:451).

Transient Osteoporosis of the Hip Classification / Treatment

  • Treatment: protected weight bearing and NSAIDs. Generally resolves completely within a few months.

Transient Osteoporosis of the Hip Associated Injuries / Differential Diagnosis

  • Avascular Necrosis
  • Femoroacetabular Impingement
  • Acetabular Labral Tear
  • Sports Hernia
  • Hip arthritis

References

  • Klontzas ME, Vassalou EE, Zibis AH, Bintoudi AS, Karantanas AH. MR imaging of transient osteoporosis of the hip: an update on 155 hip joints. Eur J Radiol. 2015 Mar;84(3):431-6.