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Egyptian Rheumatology and Rehabilitation

Table 3 Comparison of different ulnar nerve conduction study parameters between patients with different CTS electrophysiological severity grades and control subjects

From: Evaluation of axonal loss in ulnar sensory nerve fibers recorded from ring and little fingers secondary to idiopathic carpal tunnel syndrome in Egyptian patients

 

Control (92)

Minimal CTS (87)

Mild CTS (43)

Moderate CTS (41)

Severe CTS(12)

p, between all groups

p, control and minimal

p, control and mild

p, control and moderate

p, control and severe

Mean ± SD

Mean ± SD

Mean ± SD

Mean ± SD

Mean ± SD

UM DL

2.43 ± 0.4

2.39 ± 0.3

2.5 ± 0.4

2.57 ± 0.41

2.42 ± 0.43

0.133

0.605

0.321

0.071

0.950

UM amp

9.22 ± 1.9

9.16 ± 3.2

9.15 ± 2.4

8.96 ± 1.6

8.97 ± 1.5

0.983

0.879

0.855

0.446

0.671

UM CV

62.5 ± 5.3

62.09 ± 5.4

61.6 ± 4.5

60.8 ± 5.5

59.8 ± 8

0.299

0.603

0.337

0.088

0.123

US PL

2.44 ± 0.25

2.4 ± 0.3

2.5 ± 0.4

2.56 ± 0.3

2.6 ± 0.3

0.022*

0.980

0.269

0.018*

0.044*

US amp

35.23 ± 19.1

30.33 ± 15.4

29.1 ± 19.2

25.5 ± 11.65

22.58 ± 17.3

0.010*

0.061

0.084

0.003*

0.032*

US CV

61.2 ± 5.7

59.86 ± 5.7

57.5 ± 7.3

55.74 ± 5.5

55.78 ± 7.1

< 0.0001*

0.122

0.002*

<0.0001*

0.003*

UL4

2.57 ± 0.3

2.59 ± 0.3

2.71 ± 0.44

2.85 ± 0.34

2.76 ± 0.4

< 0.0001*

0.781

0.038*

<0.0001*

0.007*

Uamp4

23.06 ± 14.2

20.6 ± 10.2

17.9 ± 13

17.4 ± 11.6

16.7 ± 5

0.047*

0.187

0.046*

0.027*

0.129

UCV4

62.3 ± 6.76

60.56 ± 7.2

57.2 ± 10.6

57.78 ± 8.34

56.3 ± 6

0.0007*

0.097

0.001*

0.001*

0.004*

  1. UM ulnar motor, DL distal latency, amp amplitude, CV conduction velocity, US ulnar sensory, PL peak latency, UL4 ulnar latency recorded from 4th digit, Uamp4 ulnar amplitude recorded from 4th digit, UCV4 ulnar conduction velocity recorded from 4th digit
  2. *p is significant at ≤ 0.05
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