Application of modified primary closure of the pelvic floor in laparoscopic extralevator abdominal perineal excision for low rectal cancer

Table 3 Follow-up data

	Modified primary closure(n = 32)	Biological mesh closure(n = 44)	P value
Normal perineal wound healing1
10 d postoperatively	29	39	0.546
30 d postoperatively	27	41	0.270
60 d postoperatively	32	44	1.000
Perineal wound infection	5	5	0.734
Clear or haemoserous discharge	3	1	0.304
Pus/purulent discharge	1	2	1.000
Deep infection with or without tissue breakdown	1	2	1.000
Postoperative perineal hernia (12 mo)	0	0	N/A
Postoperative feeling of bulge (12 mo)	4	2	0.233
Postoperative chemotherapy	23	28	0.330
Postoperative radiotherapy	7	14	0.339
Postoperative local recurrence (12 mo)	0	1	1
Postoperative liver/lung metastasis (12 mo)	2	3	1
Postoperative death (12 mo)	0	0	N/A

¹Grade 0 or Grade I by the Southampton Wound Scoring System.