Fig. 8.

Posterior attachment of lateral meniscus. a Normal appearance on sagittal PD sequence as a low signal structure (circled), one slice lateral to its tibial spine attachment. b Increased signal and ill definition (circled), in keeping with undisplaced tearing. Note the normal meniscofemoral ligament of Wrisberg (arrow) extending across the intercondylar notch, and also the torn ACL. c Absent lateral meniscus at attachment to posterior slope of lateral intercondylar eminence (circled), with tiny low signal structures posterior to it (arrows), representing displaced meniscal flaps and meniscofemoral ligament of Wrisberg