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

Table 1 Patient demographics and reasons for revision of Truliant posterior stabilized compared to aggregate posterior stabilized, n (%)

Characteristic	Truliant PS (n = 1687)	Aggregate PS (n = 523234)	P value
Average age, years (SD)	67.2 (9.7)	67.3 (9.4)	0.56
Average follow-up, months (SD)	31.2 (16.5)	56.5 (28.7)	< 0.001
Sex			0.51
Male	650 (38.5)	205110 (39.3)
Female	1037 (61.5)	316630 (60.7)
Missing	0	1494
Charlson index, mean (SD)	2.57 (1.41)	2.71 (1.47)	< 0.001
Fallout due to patient death	1 (0.06)	3921 (0.75)	0.001
Primary osteoarthritis diagnosis			< 0.001
Yes	1517 (93.3)	497650 (97.3)
No	109 (6.7)	13942 (2.7)
Reason for revision
All cause	26 (1.54)	10499 (2.0)	0.17
Mechanical complications	3 (0.18)	803 (0.15)	0.80
Mechanical loosening	4 (0.24)	1743 (0.33)	0.49
Instability	4 (0.24)	1152 (0.22)	0.88
Infection	9 (0.53)	2964 (0.57)	0.86
Periprosthetic fracture	0 (0)	171 (0.03)	0.46
Other fractures	0 (0)	424 (0.08)	0.24
Fracture or related sequelae	0 (0)	448 (0.09)	0.23
Articular surface wear	0 (0)	38 (0.01)	0.73
Pain	0 (0)	1175 (0.22)	0.05
Hematoma or wound complication	0 (0)	302 (0.06)	0.32
All other diagnoses	6 (0.36)	2921 (0.56)	0.26

“Other” diagnoses include non-specific or possibly irrelevant/erroneous diagnoses including cardiac conditions, hypertension, obesity, etc. PS: Posterior stabilized.