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Insights into Imaging
Fig. 6 | Insights into Imaging

Fig. 6

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. 6

Bone decompensation after meniscectomy. a CT arthrography in a 72-year-old woman shows a horizontal tear of the medial meniscus body and a small fragment in the intercondylar notch (arrows). Ten months after meniscectomy, T1-weighted MR image (b) shows a very marked low signal intensity in the inferior pole of the medial condyle (arrow) and a small depression of the subchondral surface (arrowhead). Fat-suppressed T2-weighted image (c) shows extensive subchondral bone remodeling with heterogeneous high signal intensity in geode-like areas (arrows)

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