Smaller Anterior Cruciate Ligament Diameter Is a Predictor of Subjects Prone to Ligament Injuries: An Ultrasound Study

Figure 1

Position of the patient and the ultrasound probe during ultrasound examination of anterior cruciate ligament (ACL) is shown in (a). MRI image of knee in 90-degree flexion is shown in (b). The red rectangle denotes area of the image rotated and presented in (d) to match the morphology as seen in ultrasound image (c). White arrowheads in (c) demonstrate normal ACL. P denotes patella and T denotes tibia.

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