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

Figure 11

Meniscus posterior horn avulsion. (a) T2-weighted fat-saturated images showing a complete posterior root tear of the medial meniscus (arrow); (b) Ghost meniscus sign. The posterior horn of the medial meniscus has been replaced with triangular high signal intensity on the T2-weighted fat-saturated sequence (arrow); (c) axial reconstruction showing the large posterior horn avulsion (arrow) with high signal intensity on the T2-weighted fat-saturated sequence; (d) the posterior horn of the medial meniscus is not identified on the sagittal T1 (arrow); (g) arthroscopic view showing a displaced medial meniscus root tear; (h) arthroscopic view showing a suture of the medial meniscus root tear; (i) identification of root tears of the lateral meniscus can be more difficult on the coronal T2-weighted fat-saturated sequence; (j) ghost meniscus sign is less significant on the sagittal T2-weighted fat-saturated sequence (arrow); (k) axial reconstruction showing the posterior horn avulsion (arrow).

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