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SURGICAL SIMULATION USING 3-D TEMPORAL BONE MODEL FOR DISEASES WITH DIFFERENT PATHOLOGY
Mamoru Suzuki, Akira Hagiwara, Sachie Kawaguchi, Taro Yamaguchi, Tatsuya Hasegawa, Taro Inagaki
Department of Otolaryngology, Tokyo Medical University, Tokyo, Japan
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OBJECTIVE: The authors had already reported that a 3-D temporal bone model prototyped using selective laser sintering is useful for surgical training. These models were applied for presurgical simulation and planning for various temporal bone diseases.■
METHODS: Models of auditory canal atresia, chronic otitis media, cholesteatoma, chondroblastoma cases were created using selective laser sintering method. They were dissected before surgery using surgical instruments and microscope to obtain anatomical orientation.■
RESULTS: The models could be dissected in the same way as the actual surgery. In the atresia cases, the atretic canal were dissected and the deformed ossicles, facial canal and labyrinth were identified. In the disease with large and complicated bone defect, such as in cholesteatoma and tumor, anatomical orientation of the bone defect was easily established. The surgery was easy and safe after dissecting these models. A disinfected model could be taken in surgeon's hand to closely check the anatomical orientation.■
CONCLUSION: The 3-D temporal bone model prototyped using selective laser sintering method is extremely useful for surgical simulation of cases with auditory canal atresia, or large bone defect, such as cholesteatoma and tumor.