TABLE 3.

Summary of the cement distribution analysis for each specimen. The cement thickness between the endplates was measured axially.

Specimen	Level	Cement geometry		Cement thickness				Caudal endplate	Cranial endplate
		Surface (cm2)	Volume (cm³)	Min (mm)	Max (mm)	Mean (mm)	SD (mm)	Total surface (cm2)	Total surface (cm2)
P01	T12-L1	18.94	4.18	4.6	9.3	7.4	0.9	15.25	14.98
	L4-L5	21.77	4.12	5.6	13.5	9.5	1.8	13.99	13.98
P02	L2-L3	35.12	7.89	6.5	14.0	10.1	1.6	22.56	21.86
P03	L2-L3	23.72	5.05	6.2	14.3	9.3	1.4	17.82	18.44
	L4-L5	21.67	5.27	6.8	15.0	10.5	1.5	19.90	18.13
P04	T12-L1	11.81	2.14	6.0	10.1	8.4	0.8	12.45	12.08
	L2-L3	16.61	3.40	7.4	12.3	9.6	1.0	13.97	13.79
	L4-L5	13.49	2.02	6.5	12.6	10.5	1.4	13.35	14.00
P05	T12-L1	12.93	2.34	3.4	11.1	6.6	1.3	8.48	9.44
P06	L2-L3	11.49	2.49	5.8	16.9	8.9	1.7	10.89	11.02
	L4-L5	15.35	3.18	4.3	13.8	8.0	1.6	12.14	12.67
P07	L1-L2	21.84	2.86	7.5	19.8	10.8	2.4	21.66	16.58
	L3-L4	20.03	5.07	7.1	16.0	10.6	1.3	16.34	15.56
P08	L1-L2	26.84	7.04	3.8	16.8	9.0	2.3	17.86	18.55
	L3-L4	22.38	3.88	5.3	12.2	9.8	1.6	20.25	19.94
P09	L1-L2	26.12	6.02	4.6	13.8	9.3	1.5	18.81	18.36
	L3-L4	38.70	8.89	5.2	17.2	9.9	1.7	19.72	21.35
P10	L1-L2	24.28	5.51	4.8	15.7	9.9	1.8	15.26	14.77
	L3-L4	24.74	5.44	6.6	18.3	11.6	2.0	16.01	15.98
P11	L2-L3	16.07	3.36	6.4	11.6	9.7	1.3	15.37	15.20
	L4-L5	17.03	3.31	7.1	13.1	10.4	1.3	14.32	14.92
P12	L3-L4	20.14	3.52	2.4	11.9	8.5	2.2	18.12	17.99
P13	L1-L2	22.95	5.69	7.3	15.9	10.9	1.5	15.53	14.89
	L4-L5	27.29	5.15	9.3	16.6	13.2	1.3	16.00	16.05
P14	L3-L4	30.31	7.15	4.3	14.3	9.3	1.8	21.52	20.83
P15	L1-L2	16.51	3.57	5.7	13.9	9.5	1.3	14.25	14.67
	L4-L5	19.40	4.42	3.7	14.8	8.8	2.2	18.25	18.67
	Mean	21.39	4.56			9.6		16.30	16.10
	(SD)	(6.65)	(1.78)			(1.3)		(3.44)	(3.10)

The bold values are indicated to be Mean and Sd.