Short-term survivorship of Truliant® total knee arthroplasty implants utilizing the American Joint Replacement Registry

Table 2 Patient demographics and reasons for revision of Truliant cruciate retaining compared to aggregate cruciate retaining, n (%)

Characteristic	Truliant CR (n = 653)	Aggregate CR (n = 537840)	P value
Age, years (SD)	68 (9.1)	67.3 (9.3)	0.045
Average follow-up, months (SD)	28.0 (13.4)	52.4 (29.6)	< 0.001
Sex			0.12
Male	240 (36.8)	213312 (39.7)
Female	413 (63.3)	323421 (60.3)
Missing	0	1107
Charlson index, mean (SD)	2.74 (1.37)	2.68 (1.42)	0.32
Fallout due to patient death	1 (0.15)	3419 (0.64)	0.12
Primary osteoarthritis diagnosis			< 0.001
Yes	561 (90.2)	513415 (97.7)
No	61 (9.8)	11846 (2.3)
Reason for revision
All cause	2 (0.31)	6974 (1.3)	0.025
Mechanical complications	0 (0)	486 (0.09)	0.44
Mechanical loosening	0 (0)	878 (0.16)	0.3
Instability	0 (0)	855 (0.16)	0.31
Infection	0 (0)	2078 (0.39)	0.11
Periprosthetic fracture	0 (0)	60 (0.01)	0.79
Other fractures	0 (0)	217 (0.04)	0.61
Fracture or related sequelae	0 (0)	222 (0.04)	0.6
Articular surface wear	0 (0)	55 (0.01)	0.8
Pain	0 (0)	819 (0.15)	0.32
Hematoma or wound complication	0 (0)	179 (0.03)	0.64
All other diagnoses	2 (0.31)	2133 (0.4)	0.71

“Other” diagnoses include non-specific or possibly irrelevant/erroneous diagnoses including cardiac conditions, hypertension, obesity, etc. CR: Cruciate retaining.