Patient Characteristics in Ulnar Nerve Compression at the Elbow at a Tertiary Referral Hospital and Predictive Factors for Outcomes of Simple Decompression versus Subcutaneous Transposition of the Ulnar Nerve

Table 1

Reported pre- and postoperative symptoms in cases with surgery for ulnar nerve compression.

		Simple decompression			Primary anterior subcutaneous transposition			Secondary anterior subcutaneous transposition			value
		Mean (SD)	Percentage	Count (n)	Mean (SD)	Percentage	Count (n)	Mean (SD)	Percentage	Count (n)
VAS-estimated pain at rest preoperatively		5.2		56	5.5		29	5.4			0.84
		(2.8)			(3.1)			(2.3)
VAS-estimated pain during activity preoperatively		5.8		56	7.4		29	6.8		14	0.03
		(2.8)			(2.4)			(2.7)
McGowan grade preopereatively	Grade 1		13	8		10	3		7	1	0.32
	Grade 2		44	28		13	4		21	3
	Grade 3		43	27		77	24		71	10
Occurrence of paraesthesia preoperatively	Never		0	0		13	4		7	1	0.93
	Sometimes		10	6		6	2		7	1
	Often		45	28		28	9		43	6
	Always		45	28		53	17		43	6
Experience of reduction in sensation preoperatively	Never		15	9		9	3		0	0	0.75
	Sometimes		16	10		28	9		43	6
	Often		37	23		16	5		29	4
	Always		32	20		47	15		29	4
Occurrence of claw hand deformity preoperatively	Yes		71	18		47	15		36	5	0.23
	No		29	44		53	17		64	9
Experience of reduction in grip strength preoperatively	Not at all		12	7		10	3		14	2	0.004
	Mild		23	14		7	2		7	1
	Moderate		43	26		23	7		14	2
	Pronounced		23	14		60	18		64	9
Experience of reduction in ability to abduct or adduct fingers preoperatively	Not at all		47	28		27	8		43	6	0.09
	Mild		25	15		20	6		21	3
	Moderate		12	7		23	7		14	2
	Pronounced		17	10		30	9		21	3
Difficulty sleeping because of arm/hand preoperatively	Never		15	9		16	5		7	1	0.58
	Sometimes		19	12		9	3		36	5
	Often		44	27		44	14		36	5
	Always		23	14		31	10		21	3
VAS-estimated pain at rest postoperatively		2.8		56	2.8		29	3.1		14	0.12
		(2.6)			(2.5)			(2.1)
VAS-estimated pain during activity postoperatively		3.7		55	4.5		29	4.6		14	0.33
		(2.7)			(3.0)			(2.6)
Occurrence of paraesthesia postoperatively	Never		4	4		16	5		7	1	0.99
	Sometimes		45	27		38	12		43	6
	Often		27	16		16	5		36	5
	Always		22	13		31	10		14	2
Experience of reduction in sensation postoperatively	Never		31	19		31	10		14	2	0.75
	Sometimes		31	19		28	9		36	5
	Often		15	9		16	5		36	5
	Always		23	14		25	8		14	2
Experience of reduction in grip strength postoperatively	Not at all		26	16		13	4		7	1	0.048
	Mild		27	17		26	8		21	3
	Moderate		36	22		36	11		43	6
	Pronounced		11	7		26	8		29	4
Experience of reduction in ability to abduct or adduct fingers postoperatively	Not at all		58	35		45	14		50	7	0.28
	Mild		18	11		19	6		29	4
	Moderate		18	11		13	4		7	1
	Pronounced		5	3		23	7		14	2
Difficulty sleeping because of arm/hand postoperatively	Never		31	19		28	9		15	2	0.60
	Sometimes		25	28		50	16		54	7
	Often		7	8		13	4		23	3
	Always		5	6		9	3		8	1

The Kruskal–Wallis test was used for all the variables, except for VAS- (visual analogue scale-) estimated pain at rest and during activity and preoperative McGowan grade, where one-way ANOVA and chi-square statistics were applied, respectively. Statistically significant differences are marked in bold. Values are mean (SD), percentage, and count n.