Fig. 29.

Pejorative evolution of SIF related to cartilage degradation. a, b Initial T1-weighted MR image shows a typical subchondral insufficiency fracture in the medial tibial plateau on T1-weighted image (arrow in a) with a BME-like high-signal intensity on fat-suppressed T2-weighted image (asterisk in b). c The lesion is associated with a radial tear of the posterior horn of the medial meniscus (arrow). d–f Six months later, T1-weighted (d) and fat-suppressed T2-weighted (e) images show various signal intensities in bone on both sides of a severe chondral loss (arrows in f). The initial examination already showed a clear thinning of the cartilage of the medial condyle (arrowhead in b), which could have indicated a pejorative evolution