The technical and physiopathological problems associated with labiomaxillopalatine schisis in children are discussed. Personal experience, involving the choice of a type of anaesthesia based on the use of an analgesic (pentazocine), and the exclusion of halogenated anaesthetics in most cases, is reported. Stress is laid on the simplicity of the technique. Coupled with careful intraoperative monitoring, it has enabled this type of surgery to be handled both serenely and successfully.