Idiopathic fistula-in-ano

Table 1 Results of endorectal advancement flap

Author	n	Follow-up months (mean)	Success rates (%)	Incontinence rates (%)
Dixon et al[39]	29	5.7	69.0	0
Koehler et al[40]	42	55	73.8	28.6
Ellis et al[41]	58	22	62.9	NA
Gustafsson et al[42]	83	12	57.0	NA
Perez et al[33]	30	36	92.6	7.4
van der Hagen et al[43]	103	72	36.6	9.8
Uribe et al[44]	56	43.8	92.9	19.6
Zbar et al[45]	11	20	81.8	18.2
Mitalas et al[46]	87	15	66.7	3.4
Dubsky et al[47]	54	53.2	75.9	28.9
Ortiz et al[48]	91	24	82.4	12.1
van Koperen et al[49]	80	67	73.8	NA
Abbas et al[50]	36	27	76.0	12.0

NA: Not available; n: Number of patients