Mentes 2005.

Methods	RCT
Participants	CAF
Interventions	Length of sphincter division: to the apex of the fissure or dentate line
Outcomes	pain scores, manometry and anal incontinence scores. Fissure healing at 12 months
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	specified and adequate randomisation method
Blinding of outcome assessment (detection bias) All outcomes	Low risk	adequate
Drop‐outs All outcomes	Low risk	4/80 = 5%