Table 1.

The average (Avg), standard deviation (Std), maximum (Max), minimum (Min) and average of absolute distance (ABS Avg) of the differences between predicted model and CT reconstructed models of distal femur, proximal tibia and patella for four in vivo cases (unit: mm). Positive or negative values represent that predicted nodes were inside or outside of the CT models.

Case	Femur					Tibia					Patella
	Avg	Std	Max	Min	ABS Avg	Avg	Std	Max	Min	ABS Avg	Avg	Std	Max	Min	ABS Avg
Left-case1	0.30	0.97	3.90	−2.82	0.80	0.48	0.53	2.11	−3.16	0.17	0.49	0.60	2.70	−2.09	0.06
Left-case2	0.46	0.76	3.83	−3.03	0.66	0.51	0.56	2.27	−2.56	0.11	0.57	0.59	2.39	−2.76	0.03
Right-case1	0.33	0.72	3.31	−3.64	0.60	0.16	1.09	4.46	−4.34	0.80	0.20	0.51	1.89	−1.69	0.39
Right-case2	0.11	0.80	2.89	−3.85	0.62	0.22	0.98	4.09	−4.62	0.73	0.19	0.67	1.61	−2.00	0.56
Mean	0.30	0.81	3.48	−3.34	0.67	0.34	0.79	3.23	−3.67	0.45	0.36	0.59	2.15	−2.14	0.26
SD	0.14	0.11	0.47	0.49	0.09	0.18	0.29	1.21	0.97	0.36	0.20	0.07	0.49	0.45	0.26