A Current Review of the Meniscus Imaging: Proposition of a Useful Tool for Its Radiologic Analysis

Figure 14

Meniscal fragments from horizontal meniscal tears displaced under the medial or lateral meniscus. The displaced fragment blocks the peripheral edge of the tibial plateau and the deep part of the MCL or LCL. (a) Coronal T2 FSE Fat Sat MRI showing a displaced horizontal undersurface tear of the body of the medial meniscus with a flipped fragment (arrow) along the undersurface of the native meniscus and extending under MCL; (b) Sagittal T2 FSE Fat Sat MRI showing a displaced fragment of the medial meniscus (arrow); (c) axial reconstruction showing the flipped fragment (arrow) under MCL on the T2-weighted fat-saturated sequence; (d) three-dimensional diagram showing a displaced tear of the medial meniscus; (e) arthroscopic views of a displaced tear of the medial meniscus under the meniscus; (f) arthroscopic view of the medial meniscus tear under the meniscus reduced in intra-articular lesion; (g) Coronal T2 FSE Fat Sat MRI showing a displaced fragment of the lateral meniscus (arrow); (h) Sagittal T2 FSE Fat Sat MRI showing a large fragment of the lateral meniscus under the LCL; (i) complex tear with a displaced fragment (arrow) coursing into the superior recess in Coronal T2 FSE Fat Sat MRI; (j) arthroscopic views of a displaced tear of the medial meniscus into the superior recess.

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