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Table 5 Visual analogue scale and Boston questionnaire of CTS and electrophysiological parameters among the three groups of patients at baseline and at 6 months post intervention

From: Platelet-rich plasma injection versus surgical and medical treatment of mild-moderate carpal tunnel syndrome

Vas Group 1
M ± SD
Group 2
M ± SD
Group 3
M ± SD
F-Test P-Value LSD
VAS 0 8.53 ± 1.04 8.03 ± 1.2 8.0 ± 1.125 2.110 0.127 P1 = 0.09
P2 = 0.069
P3 = 0.909
VAS 6 1.97 ± 0.72 2.4 ± 0.85 7.74 ± 1.45 276.908 0.001 P1 = 0.094
P2 = 0.01
P3 = 0.01
Symptoms severity 0 3.17 ± 0.38 3.17±0.38 3.23 ± 0.43 0.229 0.796 P1 = 1.0
P2 = 0.561
P3 = 0.561
Symptoms severity 6 1.0 ± 0.0 1.0 ± 0.0 3.13 ± 0.67 302.325 0.001 P1 = 1.0
P2 = 0.001
P3 = 0.001
Functional state 0 2.93± 0.22 2.96±0.33 2.87 ± 0.34 4.298 0.017 P1 = 1.00
P2 = 0.013
P3 = 0.013
Functional state 6 1.4±0.03 1.07±0.05 2.81±0.46 411.575 0.001 P1 = 1.0
P2 = 0.001
P3 = 0.001
Peak sensory latency 0 5.1 ± 0.96 5.24 ± 0.885 5.52 ± 0.87 1.661 0.196 P1 = 0.532
P2 = 0.076
P3 = 0.248
Peak sensory latency 6 2.95 ± 0.56 2.93 ± 0.56 5.46 ± 0.99 118.144 0.001 P1 = 0.876
P2 = 0.001
P3 = 0.001
Distal motor latency 0 5.47 ± 0.58 5.6 ± 0.49 5.41 ± 0.49 0.997 0.373 P1 = 0.354
P2 = 0.655
P3 = 0.169
Distal motor latency 6 3.86±0.379 3.73±0.589 5.32 ± 0.59 84.522 0.001 P1 = 0.333
P2 = 0.001
P3 = 0.001
  1. There were insignificant differences between the three groups before intervention and significant statically differences of pain and function and electrophysiological parameters at 6 months post intervention by comparing both first and second groups with the third group while the first and second groups were comparable
  2. LSD least significant difference = mean, SD standard deviation, 0=at baseline, 6= at 6 months post-intervention. VAS Visual Analogue Scale