Sahebally SM, et al. - Researchers performed a systematic review and meta-analysis to compare the efficacy of anal advancement flap (AAF) vs Lateral internal sphincterotomy (LIS) for Chronic anal fissure (CAF). It was observed that AAF was associated with less incontinence, but similar wound complications, as well as a similar rate of unhealed fissures, compared to LIS. However, there appeared a necessity for further well-executed, multi-centre randomized trials to provide stronger evidence.