Table 2.

Demographic and clinical information for the full cohort and organized by IPFP scarring severity

Full Cohort
N (% female)	28 (64%)
Age (years)	66 ± 7
Revision prior to imaging, N (%)	5 (18%)
Revision after imaging, N (%)	12 (43%)
Length of Implantation (years)	4.9 ± 3.5
Osteolysis, N (%)	6 (21)
Synovitis, N (%)	10 (36)
Joint effusion, N (%)	4 (14)
Marrow edema, N (%)	3 (11)
Fibrous membrane formation, N (%)	3 (11)
Distribution of Outcomes by IPFP scarring severity
Variable	None	Mild	Moderate	Severe
N (% Female)	3 (67)	14 (79)	4 (50)	7 (43)
Age (years)	65 ± 8	67 ± 6	66 ± 8	67 ± 8
Revision prior to imaging, N (%)	1 (33)	2 (14)	1 (25)	1 (14)
Revision after imaging, N (%)	2 (67)	6 (43)	2 (50)	2 (29)
Length of Implantation (years)	7.6 ± 1.0	4.2 ± 3.0	6.4 ± 1.0	4.4 ± 4.0
Osteolysis, N (%)	2 (67)	2 (14)	0 (0)	2 (29)
Synovitis, N (%)	2 (67)	5 (36)	1 (25)	2 (29)
Joint effusion, N (%)	0 (0)	2 (14)	0 (0)	2 (29)
Marrow edema, N (%)	0 (0)	1 (7)	1 (25)	1 (14)
Fibrous membrane formation, N (%)	0 (0)	2 (14)	0 (0)	1 (14)

Age and Length of Implantation expressed as mean ± SD