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

Figure 3

Patient case 2. (a) AP right knee X-ray at day 1 showing the avulsion fracture of the femoral insertion of the LCL (white arrow). (b) Lateral view of a 3D reconstruction of the right knee CT at day 1 showing the avulsed bony fragment of the femoral insertion of the LCL (white arrow). The white star shows insertion site of the popliteal tendon. (c) Proton density coronal MRI obtained at day 3 showing an intact LCL (small black arrows) attached to the avulsed bony fragment of the femoral insertion (large white arrow). Note the superior lateral genicular vessels (large black arrow) above the bony fragment.

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