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Santler, G.
3-D COSMOS: a new 3-D model based computerised operation simulation and navigation system.
J CRANIO MAXILLOFAC SURG 2000 28: 287-293. Doi: 10.1054/jcms.2000.0156
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Leading authors Med Uni Graz: Santler Gert
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Abstract:: A new three-dimensional (3-D) model based system for preoperative planning, simulating the operation and transfer of the operation from 3-D model to patient (navigation) is to be introduced. A computer controlled digitizer with specially designed software enables 3-D measurement and symmetry analysis on the 3-D model with a precision better than 0.01 mm (SD: 0.05 mm, range: -0.2 to +0.04 mm). Translocations of the jaws during simulation are electronically registered with 6D-position sensors and displayed graphically and numerically on the PC screen (measurement accuracy 0.01 mm, 0.002 degrees). A precise transfer of positional data from the model to the patient in the operating theater is necessary if 3-D model operations are to be made. The position transfer (navigation) system to be introduced depends on a neurosurgical headframe on the patient, enabling an easy and three-dimensionally precise transfer of the planned jaw position to the patient. The three-dimensional precision of the positional transfer is 0.05 mm (SD: 0.144 mm, range: -0.36 to +0.69 mm). This new method allows for the first time exact three-dimensional simulation of operation and precise transfer to the patient. Especially in the case of asymmetric malformation and complex dysgnathia, the new method facilitates optimal symmetric and aesthetic results.
Find related publications in this database (using NLM MeSH Indexing): Computer Graphics -; Computer Simulation -; Computer Systems -; Esthetics -; Facial Asymmetry - surgery; Humans - surgery; Image Processing, Computer-Assisted - instrumentation; Imaging, Three-Dimensional - instrumentation; Intraoperative Care - instrumentation; Jaw - surgery; Jaw Abnormalities - surgery; Jaw Diseases - surgery; Osteotomy - methods; Patient Care Planning - methods; Software - methods; Stereotaxic Techniques - instrumentation; Therapy, Computer-Assisted - instrumentation