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Table 2 Average preoperative and postoperative values

From: Relationship between clinical outcomes and nerve conduction studies before and after surgery in patients with carpal tunnel syndrome

 

Preoperative

6 months

12 months

Average (SD)

Range

Average (SD)

Range

Average (SD)

Range

Grip

21.3 (10.3)

5–61.8

22.3 (10.5)

8–69.9

22.8 (5.6)

10–35.9

DASH

28.8 (19.5)

0–94.4

18.3 (13.5)

0–49.1

12.2 (8.5)

1–28

Median

 DML

7.3 (6.6)

4–18.2

5.4 (5.9)

0–8.0

  

 SCV

27.8 (7.3)

9.4–46.8

36.7 (10.7)

0–54.9

  

CMAP amplitude

3.8 (3.0)

0.1–12.7

4.2 (3.0)

0–12.0

  
  1. DASH Disabilities of Arm, Shoulder and Hand, DML Distal motor latency (ms), SCV Sensory conduction velocity (m/s), CMAP Compound muscle action potential (mV), SNAP Sensory nerve action potential (μV), SD Standard deviation