Table 3 Amounts of change between pre- and post-operative scores in each pain assessment method and results of the Friedman test
3 months postop | 6 months postop | 12 months postop | 18 months postop | 24 months postop | p value | ||
|---|---|---|---|---|---|---|---|
Pain degree (PD) | Median (IQR) | − 22.5 (− 154.25–3) | − 32 (− 151–0) | − 40.5 (− 179.5–21.5) | − 55 (− 172–0) | − 44.5 (− 172.5–0) | p = 0.002 |
VAS | Median (IQR) | − 6.5 (− 32.75–7.75) | − 6.5 (− 33.5–6.75) | − 10 (− 32.5–3.5) | − 11.5 (− 40–1.75) | − 11 (− 39–0) | p < 0.001 |
Bodily pain (BP) | Median (IQR) | 4.5 (0–9.7) | 4.7 (− 0.3–12.8) | 4.9 (0–10.3) | 4.5 (− 8.1–13.4) | 5.4 (0–13.8) | p = 0.231 |