Abstract: A technique for predicting bone resection issues during robotic surgery is provided. The technique includes accessing robotic surgery resection parameters and receiving landmarks from the distal end of a patient's femur. A 3D model of the distal femur is generated based on the landmarks. A virtual robotic resection of the distal femur is simulated using the model and parameters. Analysis of the simulated resection predicts possible issues like notching of the trochlea. Warnings are generated if problems are predicted, allowing the surgeon to adjust the plan pre-operatively. By simulating the robotic bone resection, potential problems can be anticipated and avoided through appropriate changes to the surgical plan.