Finding-the-Path: Plain radiographs of the knee

Anteroposterior and lateral views show an avulsion fracture of the lateral aspect of the proximal tibia below the articular surface (arrow). Suprapatellar soft tissue fullness is consistent with joint effusion (arrow).

Which study do you request next?

• CT of the knee
• Bone scintigraphy
• MRI of the knee
• Tomography