In the framework of malformations that concerns the craniofacial area, the orbit is often involved because it represents the border structure between the neurocranium and the splanchnocranium. In these malformations it is very easy to find hypertelorism. Tessier classified clefts rising from the anterior skullbase and involving the maxilla and the alveolar process, as medial or 0 = 14 clefts. We report on a 2-year-old patient, treated with cranial decompression at an early age, suffering from this kind of malformation. To correct it, the surgical technique of facial bipartition was used. This technique, used for the first time by Tessier and then modified by Stricker and colleagues, allows the simultaneous correction of the orbits and maxilla. It is very important to make a correct diagnosis, to plan for surgery carefully for patients suffering from this kind of pathology, and to prescribe the most effective therapy. A computerized analysis system, based on the study of teleradiographic images and on three-dimensional computed tomography, to quantify the extent of the malformation and to define surgical planning was developed.
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