Table 3.

Changes to default plan and warnings accepted by Senior author during pre-operative planning (n = 298)

	Number of changes (percentage)
Femur
Flexion–extension angle	146 (49%)
Distal resection depth	142 (47%)
Posterior resection depth	102 (34%)
Notch warning rejected	151 (51%)
Default femur size changed	142 (48%)
Tibia
Proximal resection depth	80 (27%)
Posterior slope	0 (0%)
Posterolateral overhang warning rejected	192 (64%)
Default tibial size changed	112 (38%)
Total number of changes	1067 (approximate: 4 changes per knee)