Table 2. Preoperative and clinical assessment findings of the study groups.

	Group C (n=13)				Group NR (n=7)
	n	%	Median	Min-Max	n	%	Median	Min-Max	p
Preoperative MMT grade of APB muscle strength			1.0	0.0-1.0			0.0	0.0-1.0	0.093*
Preoperative MMT grades									0.158**
0 (zero)	6	46.2			6	85.7
1 (trace)	7	53.8			1	14.3
Group C: Group contraction, Group NR: Group no-response; MMT: Manual muscle testing; APB: Adductor pollicis brevis; * Mann-Whitney U test; ** Fisher exact test.