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Table 3 Interval changes of neuroanatomical parameters for the median nerve (mean ± SD)

From: Sonographic follow-up after endoscopic carpal tunnel release for severe carpal tunnel syndrome: a one-year neuroanatomical prospective observational study

Parameter Patient (n = 31, 44 wrists) Control (n = 23, 46 wrists)
3d pre-surgery 2nd week post-surgery 4th week post-surgery 3rd month post-surgery 6th month post-surgery 12th month post-surgery
EL, cm 2.073 ± 0.718# 1.914 ± 0.598# 1.246 ± 0.504*# 0.715 ± 0.209*# 0.429 ± 0.129*# 0.098 ± 0.030*# 0.016 ± 0.011
D, cm 0.272 ± 0.045# 0.258 ± 0.039# 0.237 ± 0.032*# 0.225 ± 0.017*# 0.219 ± 0.013*# 0.214 ± 0.009* 0.213 ± 0.005
CSA, cm2 0.141 ± 0.029# 0.138 ± 0.015# 0.124 ± 0.014*# 0.117 ± 0.012*# 0.109 ± 0.011*# 0.103 ± 0.008*# 0.073 ± 0.005
  1. EL edema length of median nerve, D anteroposterior diameter of median nerve, CSA cross-sectional area of median nerve, SD standard deviation;
  2. *Statistical comparison with the previous time point for each parameter in patient group, p < 0.05;
  3. #Statistical comparison with control group, p < 0.05