PT - JOURNAL ARTICLE AU - Sapho Xenia Roodbeen AU - Annalisa lo Conte AU - Allison Hirst AU - Marta Penna AU - Willem A Bemelman AU - Pieter J Tanis AU - Roel Hompes TI - Evolution of transanal total mesorectal excision according to the IDEAL framework AID - 10.1136/bmjsit-2019-000004 DP - 2019 Jul 01 TA - BMJ Surgery, Interventions, & Health Technologies PG - e000004 VI - 1 IP - 1 4099 - http://sit.bmj.com/content/1/1/e000004.short 4100 - http://sit.bmj.com/content/1/1/e000004.full AB - Tremendous innovations have taken place in surgical procedures, but contrary to drug development, this process has been unregulated in the past. IDEAL promotes a structured framework for the safe implementation and assessment of a new surgical technique or intervention, by describing five stages for evaluating and reporting of innovations: Idea, Development, Exploration, Assessment and Long term. Transanal total mesorectal excision (TaTME) is a relatively new technique in rectal cancer surgery that has attracted huge interest and increasing adoption worldwide. This review article aims to provide an overview of the evolution of TaTME, according to the IDEAL framework, which guides us in the difficult yet exciting process of surgical innovation.