Fig. 3

a CT scan 1 mm below the tibial tray. There is an equal distribution of the cement. The yellow line is the projection of the circumference of the tibial tray. The orange line is the circumference of the area with cemented trabecular bone in the Postero-Medial quadrant. A-M = Antero-Medial, A-L = Antero-Lateral, P-M = Postero-Medial, P-L = Postero-Lateral. b CT scan 3 mm below the tibial tray. There is less cement in the periphery of all the three quarters than in the CT slice 1 mm below the tibial tray (Fig. 3a). The yellow line is the projection of the circumference of the tibial tray. The orange line is the circumference of the area with cemented trabecular bone in the Postero-Medial quadrant. A-M = Antero-Medial, A-L = Antero-Lateral, P-M = Postero-Medial, P-L = Postero-Lateral. c CT scan 5 mm below the tibial tray. There is overall less cement in the trabecular bone than in the CT slices 1 mm and 3 mm below the tibial tray. There is less cement in the anterior quadrants than in the posterior quadrants. The yellow line is the projection of the circumference of the tibial tray. The orange line is the circumference of the area with cemented trabecular bone in the Postero-Medial quadrant. A-M = Antero-Medial, A-L = Antero-Lateral, P-M = Postero-Medial, P-L = Postero-Lateral