**6. Future directions**

Reconstruction has been evolving during the last 20 years. Access to technology is assisting the planning of the resection and reconstruction. Additionally, 3D printers will better permit in the future to mimic tissue, so almost a perfect design of the tissue to reconstruct will be performed. Even that, function of some organs like tongue jet cannot properly be replaced, so much work is still necessary to reach that goal. New techniques in surveillance in microvascular perfusion like specific measurement of flap perfusion zones with heat chambers are being developing.
