Table 2 Facet joint forces at instrumented levels and cephalic adjacent levels
Motion | Model | L2-L3 (N) | L3-L4 (N) | L4-L5 |
|---|---|---|---|---|
Extension | INT | 65 (100%) | 71 (100%) | 66 (100%) |
FUS | 82 (126%) | 90 (127%) | 0 (0%) | |
PEEKFUS | 82 (126%) | 90 (127%) | 2 (3%) | |
BIOFUS | 82 (126%) | 90 (127%) | 3 (5%) | |
CageFUS | 82 (126%) | 90 (127%) | 15 (23%) | |
Lateral bending | INT | 19 (100%) | 9 (100%) | 13 (100%) |
FUS | 23 (121%) | 21 (233%) | 0 (0%) | |
PEEKFUS | 21 (111%) | 18 (200%) | 0 (0%) | |
BIOFUS | 21 (111%) | 18 (200%) | 0 (0%) | |
CageFUS | 19.8 (104%) | 15 (167%) | 7.5 (58%) | |
Torsion | INT | 125 (100%) | 124 (100%) | 112 (100%) |
FUS | 116 (93%) | 119 (96%) | 1 (1%) | |
PEEKFUS | 104 (83%) | 103 (83%) | 45 (40%) | |
BIOFUS | 104 (83%) | 103 (83%) | 45 (40%) | |
CageFUS | 101 (81%) | 100 (81%) | 106 (95%) |