[Results of the use of parietal bone as bone graft donor site in facial reconstruction. Apropos of 71 cases].

The embryologic origin of the parietal bone is membranous bone. Experimentally, membranous bone grafts, maintain its original size, structure with good osteo-integration contrary to endochondral bone autografted (ilium, rib or tibia). The morbidity of skull bone grafts is much less than other donor site of bone. In our study, between 1988 and 1992, autogenous split calvarial bone grafts were used in maxillo-facial reconstruction of seventy-one patients. We observed no major complication. Patient followup has been from 2 to 6 years and results are better than endochondral grafts (iliac crest, ribs, tibia). Parietal grafts bone have been used in the following case: nasal reconstruction, rehabilitation of defects in the floor of the orbit, maxilla grafts, correction of frontal depression and mandibular reconstruction.