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Enlarged bone tunnels. The right knee of a professional soccer player is shown after 2 anterior cruciate ligament reconstruction failures. Magnetic resonance images (anteroposterior [AP] and lateral views) show the preoperative situation of the patient, with enlarged bone tunnels; as a result, 1-stage revision was not recommended. The approximate diameter of the main tibial defect is 14 mm, and that of the femoral defect is 13.3 mm.
