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Table 2 Postoperative results

From: Adding a low-concentration sciatic nerve block to total knee arthroplasty in patients susceptible to the adverse effects of non-steroidal anti-inflammatory drugs (NSAIDs): a randomized controlled trial

 

Control (n = 25)

SNB (n = 25)

P-value

Median

(25–75)

Median

(25–75)

Pain at rest (NRS; 0–10)

 6 h

1

0–4.5

0

0–0

0.012*

 12 h

3

0–5

0

0–3

0.021*

 18 h

3

2–5

1

0–3

0.010*

 24 h

3

1–5

2

1–3.5

0.187

Pain on movement (NRS; 0–10)

 6 h

3

0–5.5

0

0–1.5

0.019*

 12 h

5

2.5–6.5

2

0–4

0.005*

 18 h

7

4–9

3

2–5

0.001*

 24 h

5

4.5–8

5

2.5–7

0.169

Anterior-knee pain (NRS; 0–10)

 6 h

2

0–4.5

0

0–0

0.002*

 12 h

2

0–4

0

0–3

0.032*

 18 h

3

0.5–5

1

0–3

0.015*

 24 h

3

1.5–5

2

0–2.5

0.028*

Posterior-knee pain (NRS; 0–10)

 6 h

0

0–0

0

0–0

0.370

 12 h

0

0–2.5

0

0–0

0.038*

 18 h

0

0–2

0

0–0

0.129

 24 h

0

0–2

0

0–1

0.666

Motor weakness (n, %)

 6 h

4

16%

6

24%

0.615

 12 h

2

8%

2

8%

1.000

 18 h

1

4%

1

4%

1.000

 24 h

1

4%

0

0%

1.000

Pain on physiotherapy (NRS; 0–10)

 24 h

6

5–8

5

3–7

0.083

 48 h

3.5

2.3–6.8

3.5

2–5

0.478

Patient satisfaction score (0–10)

10

8–10

10

10–10

0.085

Total morphine in 24 h (mg)

4

2–8

2

0–2.5

0.005*

  1. (25–75) interquartile range 25, 75, Control control group, NRS numeric rating scale, SNB popliteal-sciatic nerve block group, * P-value < 0.05