Table 3 Postoperative pain NRS scores at each time point for both groups
|  | Proximal end (n = 30) | Middle (n = 30) | P value |
|---|---|---|---|
NRS at rest, median (IQR) | |||
 0 h | 0 (0–3) | 0.5 (0–3) | 0.753 |
 2 h | 0.5 (0–3) | 1.5 (0–3) | 0.906 |
 4 h | 0.5 (0–2.63) | 1.5 (0–3) | 0.488 |
 8 h | 0 (0–2.0) | 1 (0–2.0) | 0.567 |
 24 h | 0.5 (0–3.25) | 1 (0–3) | 0.798 |
 48 h | 0 (0–2) | 0 (0–1) | 0.165 |
NRS upon passive flexion of the operated knee to 60°, median (IQR) | |||
 0 h | 2 (0–5) | 2.5 (0–4.25) | 0.861 |
 2 h | 3 (0–6) | 3 (2–5) | 0.625 |
 4 h | 2 (0–4) | 2 (1.75–4.25) | 0.447 |
 8 h | 2 (0–4) | 2.5 (0–4) | 0.815 |
 24 h | 3 (0.75–5) | 3 (2–5) | 0.788 |
 48 h | 2.5 (1–4) | 3 (1–3.25) | 0.845 |