Reconstruction of the face should be based by stating that "tissue losses should be replaced in kind.” What this means in practice is that bone should be replaced with bone, muscle with muscle and skin with skin. Nevertheless, the 3-dimensional complexity of the anatomy of facial structures, including a multitude of small muscles attached to thin, sometimes hollow bones of irregular, complex shape requires the highest levels of surgical skill.
-- See full article; Facial Reconstruction - Replacing Tissue Loss in Kind
by Consultant Maxillofacial/Head & Neck Reconstructive Surgeon, Mr Nicholas Kalavrezos