Transitorische Osteoporose oder Femurkopfnekrose? Frühdiagnose mit der MRT

Authors:
  • JGJ. Grimm
    J. Grimm
  • PPP. Pedrosa
    P. Pedrosa
  • RAR. Apel
    R. Apel
  • KBK. Bandilla
    K. Bandilla
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Abstract
Transient osteoporosis of the hip is a syndrome that does not seem to be widely known; this is also true for its radiological appearance. It is often mistaken for avascular necrosis of the femoral head, metastatic or inflammatory disease. These differential diagnoses lead to more or less invasive procedures, although transient osteoporosis does not require more than immobilisation for complete remission. MRI was done in 38 patients with acute hip pain, 13 had femoral head necrosis and 8 transient osteoporosis. Follow-up studies via MRI in patients with transient osteoporosis revealed 3 stages (diffuse, focal, residual) during the clinical course of which stage II is similar to femoral head necrosis but always without the typical sclerotic rim.