Page 82 - Demo

80Chapter4ofstepsbetweenthesegmentsislower4Figure5demonstrateshowaskewedosteotomycanprovidemaximalocclusionduringthereconstructionFigure5WithbackwardplanningtheidealpositionofosteotomylinescanbedecidedInthisexampleacurvedosteotomyoverthemidlineensuresanoptimalfittotheskullbasewhenthissegmentistransformedintoitsnewposition5-MOREPREDICTABLESURGERYNext to theplanning of the cranial contour and volume the VSPmakes the surgicalprocedureitselfmoretransparentForexampletheexactheightofatransverseosteotomyabovetheorbitaemightdependonthebonethicknessatthislevelInspectingbonethicknessandbonethicknessirregularitiespreoperativelywillhelpthesurgeonsextrapolatethecraniotomiesandcanhelpdeterminewhichcraniotomyinstrumentisoptimalforperformingtheosteotomyAlsothecourseandlocationofthesinussagittalissuperiororthesinustransversusundertheskullcanbeinspectedandconsideredwhenplanningtheosteotomiesOccasionallytheplanningsuggeststhatthebestoptionistomakeanosteotomyinorthroughasutureBydiscussingtheplanninginadvancetheprosandconscanbeweightedoralternativescanbedevisedInadditionsurgeons’preferencescanbeintegratedintheplanning