Table 2.
The mean AP-distance during flexion and extension
| L1–2 | L2–3 | L3–4 | L4–5 | L5–S | |
|---|---|---|---|---|---|
| Mean AP-distance (mm) ± SD | |||||
| Flexion | 12.4 ± 2.1 | 10.8 ± 2.5 | 9.2 ± 2.3 | 8.3 ± 2.0 | 10.5 ± 2.1 |
| Extension | 11.3 ± 2.2 | 9.1 ± 2.4 | 7.4 ± 2.2 | 7.4 ± 2.1 | 9.9 ± 2.3 |
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