Table 4.
Brief Pain Inventory following the perineural infusion. There were no statistically significant differences between treatment groups.
| Postoperative Day: |
4
|
8
|
28
|
|||
|---|---|---|---|---|---|---|
| Ropivacaine | Placebo | Ropivacaine | Placebo | Ropivacaine | Placebo | |
| Pain (0–10 Numeric Rating Scale) | ||||||
| Worst | 4 (1–6) | 5 (2–6) | 3 (1–5) | 3 (1–5) | 1 (0–4) | 2 (0–3) |
| Average | 3 (0–3) | 2 (0–4) | 2 (0–3) | 2 (0–3) | 0 (0–2) | 0 (0–1) |
| Least | 0 (0–3) | 0 (0–2) | 0 (0–2) | 0 (0–2) | 0 (0-0) | 0 (0-0) |
| Current | 2 (0–3) | 2 (0–4) | 1 (0–3) | 1 (0–3) | 0 (0–1) | 0 (0-0) |
| Pain Subscale Total (0–40) | 10 (2–13) | 8 (3–15) | 6 (1–12) | 7 (2–12) | 1 (0–9) | 3 (0–5) |
| Relief provided by analgesics (%) | 80 (50–100) | 70 (50–100) | 90 (55–100) | 85 (60–100) | 100 (90–100) | 100 (85–100) |
| Interference with (0–10)… | ||||||
| General activity | 3 (0–6) | 3 (0–7) | 1 (0–4) | 3 (0–6) | 0 (0–2) | 0 (0–3) |
| Mood | 1 (0–3) | 0 (0–4) | 0 (0–3) | 0 (0–4) | 0 (0–1) | 0 (0–1) |
| Walking | 0 (0–2) | 0 (0–3) | 0 (0–1) | 0 (0–2) | 0 (0-0) | 0 (0-0) |
| Work (inside/outside of home) | 3 (0–7) | 1 (0–6) | 1 (0–4) | 0 (0–4) | 0 (0–2) | 0 (0–3) |
| Relationships | 0 (0–2) | 0 (0–3) | 0 (0–2) | 0 (0–2) | 0 (0–1) | 0 (0-0) |
| Sleep | 0 (0–4) | 0 (0–5) | 0 (0–5) | 0 (0–4) | 0 (0–2) | 0 (0–1) |
| Enjoyment of life | 3 (0–5) | 0 (0–5) | 0 (0–3) | 0 (0–5) | 0 (0–1) | 0 (0–2) |
| Subscale Total (0–70) | 14 (0–26) | 12 (0–32) | 6 (0–22) | 3 (0–22) | 0 (0–12) | 0 (0–11) |
| Brief Pain Inventory Total (0–120) | 31 (2–40) | 24 (4–53) | 15 (2–40) | 20 (3–43) | 0 (0–11) | 3 (0–12) |
Values are reported as median (interquartile) and represent the previous 24 h from time queried
Values for the Brief Pain Inventory total score (0 = optimal; 120 = worst possible) consist of both subscales combined with the question relief provided by analgesics calculated as follows: percentage relief divided by 10 and then subtracted from 10 (0 = complete relief, 10 = no relief).