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Table 1 The pre- and post-operative scores in each pain assessment method and results of the Friedman test

From: Correction: Efficacy of the PainVision apparatus for assessment of axial neck pain after cervical laminoplasty: a prospective study

  

Preop.

3 months postop.

6 months postop.

12 months postop.

18 months postop.

24 months postop.

p-value

Pain degree (PD)

Median (IQR)

82.5 (23.5–254.75)

63.5 (6.75–127.5)

52.0 (2–107)

47.0 (0–102.75)

43.0 (0–98.5)

31.0 (0–89)

p < 0.001

VAS

Median (IQR)

43.5 (10.25–68.75)

23.5 (8.5–47)

20.0 (7–49)

20.0 (5.25–45.75)

20.0 (0–43)

16.0 (0–33)

p < 0.001

Bodily pain (BP)

Median (IQR)

35.4 (26.9–44.7)

40.3 (35.4–50.1)

40.3 (35.4–50.1)

40.3 (35.4–49.9)

40.3 (35.4–50.1)

44.7 (35.4–54.6)

p < 0.001

  1. All three pain assessment methods were found to be significantly improved postoperatively by the Friedman test
  2. Preop. Preoperatively, Postop. Postoperatively, IQR interquartile range, VAS visual analogue scale