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Insights into Imaging
Fig. 28 | Insights into Imaging

Fig. 28

From: Subchondral insufficiency fractures, subchondral insufficiency fractures with osteonecrosis, and other apparently spontaneous subchondral bone lesions of the knee—pathogenesis and diagnosis at imaging

Fig. 28

Subchondral bone changes associated with advanced osteoarthritis. a Radiograph shows heterogeneous subchondral bone densification and complete narrowing of the medial joint space. b, c T1- and T2-weighted MR images (b and c) show focal heterogeneous low signal intensities of these areas, quite similar to what could be seen in subchondral osteonecrosis

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