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| {{Stub}} | | {{PDF|Bone marrow oedema syndromes - Patel 2014.pdf}} |
| | | [[Category:Bone and Cartilage Disorders]] |
| Bone marrow oedema syndrome is also referred to as "transient osteoporosis of the hip." | |
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| == Aetiology ==
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| Unknown
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| == Epidemiology ==
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| Originally described in pregnancy, but is most commonly seen in middle aged men with hip pain.
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| == Investigations ==
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| Osteopaenia may be seen in [[Hip Radiograph|hip radiographs]] but is often normal. Osteopenia may only show up 4-8 weeks after the onset of hip pain.
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| On MRI there may be increased T2 signal in the bone marrow of the femoral head and neck. There can be extension into the subtrochanteric region and there is also often a joint effusion. The main differential is [[osteonecrosis]], but in osteonecrosis the signal change is focal rather than diffuse..
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| Bone scan shows diffuse and homogeneously increased uptake involving the femoral head and neck. MRI has made bone scan obsolete.
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| == Prognosis ==
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| The condition is self-limiting in most cases and the osteopenia usually resolves within nine months of symptom onset. However it is a risk factor for potential progression to advanced avascular necrosis.
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| == References ==
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| [[Category:Pelvis, Hip and Thigh Conditions]] | |
Latest revision as of 20:25, 15 April 2022
