THE USE OF COMPUTER-GENERATED 3-DIMENSIONAL MODELS IN ORBITAL RECONSTRUCTION

In this paper we describe the application of three-dimensional (3D) im aging and computer-generated models in the management of orbital defor mity. The technique was found to be particularly useful in posttraumat ic deformity and fibrous dysplasia involving the orbit. Further applic ation was found in cases of radiation hypoplasia, high facial cleft, a nd facial atrophy. Funding restrictions necessitate appropriate select ion of cases when using new and expensive 3D imaging rather than tradi tional and less expensive methods. To remain within a realistic budget only those patients who will clearly benefit from the third dimension compared with traditional methods of assessment and management should be selected. These include patients requiring precise reduction or se condary reconstruction in which there is a matched normal anatomical c omponent for comparison. This application is also only beneficial wher e the planned reconstruction is dimensionally stable.