TABLE II.

Biomechanical Properties of Femoral Cortical Suspension Devices^*†

	Preconditioning Displacement (mm)	Retensioned	Cumulative Peak Cyclic Displacement (mm)	Stiffness (N/mm)	Ultimate Strength (N)
ENDOBUTTON	0.06 ± 0.01	NA	1.05 ± 0.05	927 ± 15	1,530 ± 180
RIGIDLOOP	0.05 ± 0.03	NA	1.09 ± 0.16	1,628 ± 45	1,976 ± 229
TightRope	0.03 ± 0.02	No	2.20 ± 0.62	1,354 ± 35	784 ± 45
TightRope	0.04 ± 0.04	Yes	1.81 ± 0.51	1,353 ± 60	1,020 ± 421
ToggleLoc	0.67 ± 1.49	No	3.69 ± 2.39	1,480 ± 103	1,995 ± 217
ToggleLoc	0.24 ± 0.12	Yes	3.22 ± 1.41	1,538 ± 57	2,231 ± 511
XO Button	0.16 ± 0.05	NA	1.65 ± 0.43	1,747 ± 58	2,218 ± 114

^*NA = not applicable.

^†All data reported as mean ± SD.

Reproduced, with permission, from: Johnson JS, Smith SD, LaPrade CM, Turnbull TL, LaPrade RF, Wijdicks CA. A biomechanical comparison of femoral cortical suspension devices for soft tissue anterior cruciate ligament reconstruction under high loads. Am J Sports Med. 2015;43(1):154-60.