Abstract
Osteonecrosis is a relatively common pathol-ogy with varying frequencies of its subu-nits - according to the affected bone, with significant clinical manifestations and a high probability of progression to an advanced stage, respectively the need for surgical treat-ment by alloplasty of the given joint. Imaging methods play a major and indispensable role in diagnosis, namely simple scan, computed tomography and magnetic resonance imaging.
Nuclear medicine is also represented. A simple scan and CT scan mainly reveals late changes in the bone, but it helps in the assessment of secondary changes in the surrounding area and especially CT scan helps in the assessment of the shape changes of the bone.
Magnetic resonance imaging can detect changes even in the preclinical stage and thus help to limit progression only to the lighter stages of the disease.