Modern surgical strategies for perianal Crohn's disease

Table 2 The results of flap procedures

Ref.	Year	n	Healing (%)	Recurrence (R) or incontinence (I) (%)
Van Koperen et al[20]	2009	9	45	55 (R)
Soltani et al[21]	2010	91	64	9.4 (I)
Church et al[22]	2011	19	87	NR
Roper et al[23]	2019	39	92,6	19.5 (R)
Stellingwerf et al[24]	2019	64	61	7.8 (I)
Praag et al[25]	2019	21	60	19 (R) 15.8 (I)

NR: Not reported.