Table 3.
Back-out values and qualitative assessment for all final test specimens. For back-out values, measurement locations are shown in parentheses and correspond to locations provided in Fig. 2. Positive values indicate posterior back-out of the device within the facet, while negative values correspond to anterior back-out.
|
Left |
Right |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| ID | Level | (1) Back- Out (mm) | (2) Back- Out (mm) | (3) Back- Out (mm) | Back-Out Assessment | (1) Back- Out (mm) | (2) Back- Out (mm) | (3) Back- Out (mm) | Back-Out Assessment |
| 1 | C4–C5 | 0.4 | 0.1 | 0.5 | n.s. | −0.3 | −0.4 | 0.3 | n.s. |
| 1 | C6–C7 | 0 | −0.3 | −0.2 | n.s. | −0.1 | 0.3 | 0.2 | n.s. |
| 2 | C4–C5 | 0.4 | 0.4 | −0.3 | n.s. | 0 | 0 | 0.1 | n.s. |
| 2 | C6–C7 | −0.2 | −0.2 | −0.4 | n.s. | 0.1 | 0 | −0.1 | n.s. |
| 3 | C4–C5 | 0.1 | 0 | 0.2 | n.s. | −0.1 | −0.1 | −0.1 | n.s. |
| 3 | C6–C7 | −0.3 | −0.1 | 0 | n.s. | −0.3 | −0.4 | 0 | n.s. |