Analysis of the clinical factors associated with anal function after intersphincteric resection for very low rectal cancer

Table 2 Differences in clinicopathological characteristics between intersphincteric resection (ISR) procedures

	Partial ISR, (n = 11)	Subtotal ISR, (n = 4)	Total ISR, (n = 14)
Sex
Male	6	2	6
Female	6	2	8
Type of reconstruction
Colonic J-pouch	9	4	13
Straight	3	0	1
Combined with partial ESR	0	2	2
Distance between the distal edge of the tumor and the dentate line, mm^a	16.0 ± 4.6	5.0 ± 4.1	3.5 ± 5.1
Distal resection margin, mm^a	8.7 ± 6.0	9.5 ± 10.5	7.2 ± 5.4
CRM, mm^a	3.2 ± 2.7	4.8 ± 3.1	3.6 ± 2.1
No. of stoma closures^b	9 (81.8)	2 (50)	8 (57.1)

^aValues indicate mean ± SD.
^bData in parentheses represent percentage values in each group.
CRM = circumferential resection margin; ESR = external sphincteric resection; ISR = intersphincteric resection.

ISSN: 1477-7819