Skip to main content

Table 2 Comparison between the MN dimensions of the surgically and non-surgically treated patients

From: The correlation between pre-operative ultrasonographic median nerve evaluation and the operative procedure in CTS

MN variable Surgical patients (n = 24) Non-surgical patients (n = 6) P
(1)Area PQ   P< 0.001   P< 0.001  
 Range (8–11) (8–11)  
 Mean ± SD 9.42 ± 1.1 9.67 ± 1.2 0.64
(1)Area PS    
 Range (10–20) (11–14)  
 Mean ± SD 14.25 ± 3.01 12.67 ± 1.5 0.32
(1)Flattening ratio    
 Range (2.2-4.3) (2.2-4)  
 Mean ± SD 3.68 ± 0.71 3.13 ± 0.74 0.07
(2)Area PS-Area PQ    
 Range (1–10) (2–4)  
 Mean ± SD 4.83 ± 2.44 3 ± 0.89 0.106
  1. CSA cross sectional area, PQ pronator quadratus muscle, PS pisiform bone
  2. (1)Independent sample t test for parametric quantitative data
  3. (2)Mann-Whitney test for non-parametric quantitative data
  4. significant difference at p value < 0.05