Table 3 Dynamic axial compression bending testing
Memory Metal Spinal System | |||
|---|---|---|---|
Specimen | Load (N) | Cycles to failure (n) | Failure mode |
1 | 198 | 5000000 | No observed failure |
2 | 237 | 5000000 | No observed failure |
3 | 237 | 5000000 | No observed failure |
4 | 269 | 771901 | Superior screws rotate inferiorly about superior transverse bridge |
5 | 296 | 500 | Superior screws rotate inferiorly about superior transverse bridge |
6 | 355 | 250 | Superior screws rotate inferiorly about superior transverse bridge |
MOSS Miami | |||
Specimen | Load (N) | Cycles to failure (n) | Failure mode |
1 | 160 | 5000000 | No observed failure |
2 | 170 | 5000000 | No observed failure |
3 | 172 | 80000 | Screw head/shank interface |
4 | 175 | 134537 | Screw head/shank interface |
5 | 180 | 90811 | Screw head/shank interface |
6 | 220 | 44251 | Screw head/shank interface |