Fig. 12From: Ultrasound imaging of the posterior lateral corner of the knee: a pictorial review of anatomy and pathologiesUltrasound imaging (long-axis view) of the normal (white arrowhead) (a) and partially torn (black arrow) (b) popliteus tendons. Popliteus muscle tear (white arrow) (c) and the ultrasound-guided injection (d). Black arrow: needle trajectoryBack to article page