Table 5.

RMSE and percentage FSE in medial and lateral force and peak pressure values between in vitro and FE results for axial load of 374 N and varus/valgus bending moments ranging from 0 to 15 Nm.

	Medial compartment				Lateral compartment				Medial compartment				Lateral compartment				Force ratio
	Absolute force (N)		Normalised force		Absolute force (N)		Normalised force		Absolute pressure (MPa)		Normalised pressure		Absolute pressure (MPa)		Normalied pressure		Medial compartment		Lateral compartment
Bending moment (Nm)	Exp	FE	Exp	FE	Exp	FE	Exp	FE	Exp	FE	Exp	FE	Exp	FE	Exp	FE	Exp	FE	Exp	FE
15	267	494	1.00	1.00	0	0	0	0	2.26	2.21	1	1	0	0	0	0	100	100	0	0
14	257	474	0.96	0.96	0	0	0	0	2.14	2.03	0.95	0.92	0	0	0	0	100	100	0	0
13	246	451	0.92	0.91	0	0	0	0	1.92	1.8	0.85	0.81	0	0	0	0	100	100	0	0
12	223	432	0.84	0.87	0	3	0	0.01	1.67	1.62	0.74	0.73	0	0	0	0	100	99	0	1
11	207	414	0.78	0.84	0	8	0	0.02	1.48	1.42	0.65	0.64	0	0	0	0	100	98	0	2
10	185	392	0.69	0.79	0	18	0	0.04	1.45	1.21	0.64	0.55	0	0	0	0	100	96	0	4
9	181	375	0.68	0.76	6	29	0.02	0.07	1.42	1.13	0.63	0.51	0.09	0.07	0.02	0.04	97	93	3	7
8	172	357	0.64	0.72	13	43	0.04	0.1	1.38	1.08	0.61	0.49	0.17	0.15	0.04	0.08	93	89	7	11
7	155	339	0.58	0.69	18	59	0.06	0.14	1.34	1.13	0.59	0.51	0.22	0.24	0.05	0.12	90	85	10	15
6	142	320	0.53	0.65	31	76	0.1	0.17	1.25	0.98	0.55	0.44	0.34	0.33	0.07	0.17	82	81	18	19
5	132	303	0.49	0.61	48	92	0.16	0.21	1.16	0.94	0.51	0.43	0.51	0.4	0.11	0.21	73	77	27	23
4	123	286	0.46	0.58	65	108	0.21	0.25	1.06	0.89	0.47	0.4	0.7	0.47	0.15	0.24	65	73	35	27
3	113	270	0.42	0.55	83	125	0.27	0.29	0.96	0.86	0.42	0.39	0.9	0.54	0.19	0.28	58	68	42	32
2	104	252	0.39	0.51	100	141	0.33	0.32	0.85	0.8	0.38	0.36	1.1	0.61	0.23	0.31	51	64	49	36
1	96	233	0.36	0.47	117	159	0.38	0.36	0.75	0.75	0.33	0.34	1.3	0.69	0.27	0.35	45	59	55	41
0	95	215	0.36	0.44	128	177	0.42	0.41	0.7	0.7	0.31	0.32	1.5	0.8	0.32	0.41	43	55	57	45
− 1	90	190	0.34	0.38	147	203	0.48	0.47	0.59	0.62	0.26	0.28	1.8	0.95	0.38	0.49	38	48	62	52
− 2	89	178	0.33	0.36	150	217	0.49	0.5	0.57	0.59	0.25	0.27	1.94	1.03	0.41	0.53	37	45	63	55
− 3	86	166	0.32	0.34	154	228	0.5	0.52	0.56	0.55	0.25	0.25	2.1	1.06	0.44	0.54	36	42	64	58
− 4	57	140	0.21	0.28	194	253	0.64	0.58	0.5	0.45	0.22	0.2	2.72	1.17	0.57	0.6	23	36	77	64
− 5	52	124	0.19	0.25	202	270	0.66	0.62	0.49	0.37	0.22	0.17	2.93	1.25	0.62	0.64	20	31	80	69
− 6	48	109	0.18	0.22	210	285	0.69	0.65	0.47	0.31	0.21	0.14	3.12	1.31	0.66	0.67	19	28	81	72
− 7	27	94	0.1	0.19	243	300	0.8	0.69	0.39	0.21	0.17	0.1	3.54	1.37	0.75	0.7	10	24	90	76
− 8	20	74	0.07	0.15	247	321	0.81	0.74	0.37	0.07	0.16	0.03	3.66	1.45	0.77	0.74	7	19	93	81
− 9	10	54	0.04	0.11	255	340	0.84	0.78	0.33	0	0.15	0	3.8	1.53	0.8	0.78	4	14	96	86
− 10	4	45	0.01	0.09	270	355	0.89	0.81	0.24	0	0.11	0	4.03	1.6	0.85	0.82	1	11	99	89
− 11	0	34	0	0.07	278	373	0.91	0.86	0.1	0	0.04	0	4.2	1.68	0.88	0.86	0	8	100	92
− 12	0	25	0	0.05	282	390	0.92	0.89	0	0	0	0	4.35	1.74	0.92	0.89	0	6	100	94
− 13	0	20	0	0.04	296	401	0.97	0.92	0	0	0	0	4.52	1.8	0.95	0.92	0	5	100	95
− 14	0	11	0	0.02	300	426	0.98	0.98	0	0	0	0	4.6	1.94	0.97	0.99	0	3	100	97
− 15	0	8	0	0.02	305	436	1	1	0	0	0	0	4.75	1.95	1	1	0	2	100	98
RMSE		138.71		0.08		65.18		0.04		0.16		0.07		1.49		0.06		8.05		8.05
FSE (%)		28.08		7.56		14.59		4.48		0.07		6.67		0.31		5.04

Note: Percentage FSE was obtained by expressing the RMSE as a percentage of the maximum corresponding value.