Table 4. Asymmetry measurements (ΔCSA and ΔUtpt) before and after treatment in patients without and with reactions.
| No reactions (31 patients) | Reactions (42 patients) | ||||||
|---|---|---|---|---|---|---|---|
| Variable | Nerves | Pre-treatment | Post-treatment | p-value | Pre-treatment | Post-treatment | p-value |
| ΔCSA (mm2) | Ulnar (Upt) | ||||||
| mean±SD | 1.6±1.6 | 2.0±3.5 | 0.91 | 5.2±9.2 | 4.3±6.9 | 0.20 | |
| median | 1.1 | 1.1 | 1.5 | 1.9 | |||
| Ulnar (Ut) | |||||||
| mean±SD | 2.7±4.9 | 2.2±2.6 | 0.44 | 6.2±15.0 | 4.2±7.2 | 0.04* | |
| median | 1.2 | 1.2 | 2.0 | 2.0 | |||
| Median | |||||||
| mean±SD | 1.8±2.6 | 1.8±1.7 | 0.68 | 2.3±3.8 | 3.1±4.6 | 0.74 | |
| median | 1.0 | 1.6 | 1.0 | 1.2 | |||
| Common fibular | |||||||
| mean±SD | 5.9±8.3 | 4.0±4.2 | 0.43 | 4.4±8.5 | 4.6±9.8 | 0.10 | |
| median | 3.0 | 2.8 | 2.0 | 3.0 | |||
| ΔUtpt (mm2) | Right ulnar nerve | ||||||
| mean±SD | 4.2±5.9 | 3.2±3.4 | 0.85 | 3.2±2.9 | 2.7±3.0 | 0.90 | |
| median | 2.5 | 2.0 | 2.0 | 2.0 | |||
| Left ulnar nerve | |||||||
| mean±SD | 3.8±5.0 | 3.1±3.5 | 0.50 | 5.2±8.1 | 4.6±7.1 | 0.04* | |
| median | 2.0 | 2.0 | 2.6 | 2.0 | |||
ΔCSA: differential CSA (cross-sectional area) index; ΔUtpt: differential ulnar pre-tunnel and tunnel index; SD: standard deviation; Upt: ulnar nerve, proximal to the cubital tunnel; Ut: ulnar nerve at the cubital tunnel;
*: statistically significant.
Linear regression.