Table III.

Mean measures for similarity of stress distribution (%), percentage of interface area underloaded compared to the native case (%), maximum stress (MPa) in total knee arthroplasty, and the total load measured across the whole bone-implant interface (N). T0 refers to the conventional implant; T1 to T4 refers to the additively manufactured implants as given in Table I.

Test variant	Mean Jaccard similarity, % (SD)	Mean area underloaded, % (SD)	Mean maximum stress, MPa (SD)		Mean total load measured, N (SD)
			Medial condyle	Lateral condyle
Native	N/A	N/A	2.1 (0.1)	1.7 (0.2)	698.4 (1.4)
T0	20.5 (2.4)	77.0 (1.2)	0.2 (0.0)	0.2 (0.0)	698.8 (0.8)
T1	77.6 (5.0)	0.9 (0.8)	2.7 (0.7)	1.9 (0.2)	699.1 (0.6)
T2	67.8 (12.1)	0.5 (0.4)	1.8 (0.3)	1.4 (0.2)	699.2 (0.2)
T3	74.2 (5.8)	1.7 (0.5)	2.2 (0.1)	1.7 (0.3)	697.8 (1.3)
T4	72.9 (8.1)	0.5 (0.3)	2.0 (0.2)	1.4 (0.2)	698.5 (0.7)

N/A, not applicable; SD, standard deviation.