The SECONDI MAPZ© system: a practical guide and proof of concept

The SECONDI MAPZ© system is a new, simple, and logical classification of oncological defects of the midface that combines regional anatomy, 3-dimensional visualisation, and the hierarchy of functional priorities. In this paper, we provide clinical and radiographic examples of defects of varying complexity to illustrate the application of the system, to highlight its versatility, and to give practical clinical and radiological guidance on its use. We hope that its introduction will result in better communication of information, and the collection of more uniform data with which to compare outcomes, and ultimately will facilitate evidence-based practice in head and neck oncology.