Isolated Femoral LCL Avulsion Fracture in the Adult Knee: Two Patient Cases and Literature Review

Figure 1

Patient case 1. (a) AP right knee X-ray at day 1 showing the avulsion fracture of the femoral insertion of the LCL (white arrow). (b) Clinical appearance at 2 weeks showing bruises over lateral aspect of the right knee. (c) Proton density coronal MRI of the right knee at day 3 showing a wavy though intact LCL (small arrows) attached to the avulsed bony fragment of the femoral insertion (large arrow). The iliotibial band (arrowhead) lies immediately superficial to the proximal LCL.

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