Table 2 Comparison of clinical indicators of physical examination, nerve conduction studies, and B mode sonography between patients with carpal tunnel syndrome (CTS) and healthy volunteers

Monofilament sensory test

30.1±4.1

32.8±3.2

0.0002

Pinch power (kg)

9.0±4.0

10.4±3.5

0.0854

Distal median sensory latency (ms)

3.8±1.3

2.6±0.4

<.0001

Distal median motor latency (ms)

5.0±1.1

3.4±0.4

<.0001

Midpalm median latency (ms)

2.3±0.5

1.5±0.2

<.0001

CSA of median nerve (mm²)

10.5±4.7

7.0±2.4

<.0001

Flattening ratio

2.8±0.8

2.6±0.9

0.1660