Table 1.

Characterisation of the study group according to cement status, time to failure, patient age and indication for revision

	No.	Cement mantle (mm)			Cement penetration (mm)			Time to failure (months)	Age (years)	Indication for revision (n)
		Zone 1	Zone 2	Zone 3	Zone 1	Zone 2	Zone 3			Fracture	Acetabular	Other
Implant type
Biomet: ReCap	7	1.7 ± 0.6	1.4 ± 0.2	1.0 ± 0.3	3.2 ± 1.5	8.0 ± 3.8	4.8 ± 2.5	3.6 ± 4.5	62.4 ± 5.5	6 (85%)	0 (0%)	1 (15%)
Corin: Cormet	15	2.7 ± 2.3	2.0 ± 2.0	1.0 ± 0.9	1.5 ± 2.7	2.4 ± 3.7	1.6 ± 2.1	35.1 ± 17.3	52.3 ± 11.3	2 (17%)	1 (8%)	9 (75%)
DePuy: ASR	110	3.0 ± 2.1	1.6 ± 1.6	0.8 ± 0.8	2.8 ± 3.1	3.0 ± 3.7	2.0 ± 2.4	5.7 ± 6.5	56.4 ± 9.6	73 (80%)	5 (5%)	14 (15%)
S&N: BHR	7	2.3 ± 1.5	2.2 ± 1.6	0.4 ± 0.5	3.5 ± 3.4	5.8 ± 4.7	4.7 ± 3.8	18.3 ± 10.8	46.7 ± 13.5	3 (50%)	2 (25%)	2 (33%)
Zimmer: Durom	11	1.8 ± 2.2	2.2 ± 0.9	1.5 ± 0.6	4.0 ± 3.2	2.4 ± 2.2	2.0 ± 1.3	6.7 ± 5.1	55.9 ± 4.0	6 (75%)	1 (17%)	0 (0%)
Pooled	150	2.7 ± 2.1	1.7 ± 1.5	0.9 ± 0.8	2.9 ± 3.0	3.3 ± 3.8	2.2 ± 2.5	8.3 ± 11.0	55.9 ± 4.0	90 (72%)	9 (7.2%)	26 (21%)
Sex
Females	64	3.0 ± 2.0	1.7 ± 1.5	0.9 ± 0.9	2.1 ± 2.6	2.6 ± 3.2	2.1 ± 2.6	7.2 ± 10.0	56.4 ± 9.2	48 (79%)	4 (7%)	9 (14%)
Males	63	2.8 ± 2.3	1.6 ± 1.7	0.8 ± 0.7	3.5 ± 3.1	4.1 ± 4.4	2.4 ± 2.8	9.6 ± 12.0	55.5 ± 10.4	34 (67%)	5 (10%)	12 (23%)
Cement type
Low Visc	19	2.8 ± 1.8	2.1 ± 2.3	0.7 ± 0.8	3.7 ± 3.2	3.9 ± 4.6	2.9 ± 3.8	9.6 ± 14.8	55.6 ± 7.2	11 (64%)	3 (18%)	3 (18%)
Medium Visc	9	2.3 ± 1.2	1.9 ± 1.9	1.2 ± 1.3	2.5 ± 2.2	2.7 ± 2.9	2.4 ± 3.5	5.1 ± 3.4	54.7 ± 5.1	8 (89%)	0 (0%)	1 (11%)
High Visc	28	3.2 ± 2.3	1.5 ± 1.4	0.8 ± 0.6	2.1 ± 2.	3.6 ± 4.5	2.3 ± 2.7	4.4 ± 4.9	55.2 ± 12.2	22 (92%)	0 (0%)	2 (8%)
Implant Size
Small	33	2.5 ± 2.0	1.4 ± 1.3	0.8 ± 0.7	3.0 ± 2.8	3.7 ± 4.2	2.2 ± 2.3	9.7 ± 9.8	55.5 ± 10.8	21 (78%)	1 (4%)	5 (18%)
Medium	116	2.8 ± 2.1	1.7 ± 1.6	0.9 ± 0.8	2.8 ± 3.1	3.2 ± 3.7	2.3 ± 2.5	7.9 ± 11.3	56.0 ± 9.4	68 (70%)	8 (8%)	21 (22%)
Large	1	2.8 ± 0.0	3.3 ± 0.0	2.0 ± 0.0	1.0 ± 0.0	0.5 ± 0.0	0.0 ± 0.0	4.4 ± 4.9	55.2 ± 12.2	1 (100%)	0 (0%)	0 (0%)

visc viscosity