Diagnosing, planning and evaluating osteochondral XXXX with imaging modalities.

@entity4713 @entity3681 @entity75 @entity4 @entity79 @entity1411 @entity130
This current concepts review outlines the role of different imaging modalities in the diagnosis, preoperative planning, and follow-up of osteochondral @entity3681 . An osteochondral ankle defect involves the articular cartilage and subchondral bone (usually of the talus) and is mostly caused by an ankle supination @entity130 . Conventional radiographs are useful as an initial imaging tool in the diagnostic process, but have only moderate sensitivity for the detection of @entity4713 . Computed tomography (CT) and magnetic resonance imaging (MRI) are more accurate imaging modalities. Recently, ultrasonography and single photon emission CT have been described for the evaluation of @entity4713 . CT is the most valuable modality for assessing the exact location and size of @entity75 . Cartilage and subchondral @entity79 can be visualized using MRI, but the defect size tends to be overestimated due to bone @entity4 . CT with the ankle in full @entity1411 has been shown a reliable tool for preoperative planning of the surgical approach. Postoperative imaging is useful for objective assessment of repair tissue or degenerative changes of the ankle joint. Plain radiography, CT and MRI have been used in outcome studies, and different scoring systems are available.
