[Bone marrow edema and joint injuries].

BACKGROUND

The development of bone marrow edema in body regions adjacent to joints can have many causes and a differentiation is not possible using magnetic resonance imaging (MRI).

DEFINITION

Bone marrow edema is not necessarily an indication for microfractures. The definition of bone marrow edema is a purely radiological description. There is no uniform classification of bone marrow edema. The clinical significance, therapy and course are heterogeneous; therefore, there are no uniform recommendations for therapy.

DIAGNOSTICS

A bone marrow edema visible in MRI does not always lead to certain inferences regarding the pathogenesis. In order to be able to detect fractures it is necessary to carry out a biopsy and a histological examination.

CONCLUSION

The interpretation of MRI results and the derivation of a therapy in every case need a balanced assessment of the MRI results, medical history, clinical investigations and clinical symptoms.