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In tumour surgery, physical models of the patient anatomy, importantly, shorten the operation time, significantly reducing
such as Planmeca ProModel, generate several benefits prior operating costs.
to and during operation. Planmeca ProModel is a physical
model clearly showing the tumour to provide vital information Malignant tumour on anterior mandible
for the surgeon.
A 79-year-old female patient had a malignant tumour (small cell
First, the surgeon receives thorough information on and cancer i.e. SCC) on her anterior mandible. The tumour had
around the tumour, when using a solid model to examine infiltrated into the anterior floor of the mouth and into
the patient anatomy. the anterior tongue.
Second, it is easier to estimate safe resection margins accu- Safe resection margins
rately on a model before-hand than in the actual treatment
situation. These exact resection dimensions are measured and Planmeca ProModel was built with coloured
transferred to Planmeca ProModel template. The template is then tumour, based on the radiologist’s pre-markings
used as guiding device during the operation. on the patient’s CT data. The clinical findings
and initial CT images revealed that a partial
The models and templates produced with the novel en bloc mandibulectomy was needed to
CADCAM technology and rapid prototyping enhance remove the tumour with clear margins.
the accuracy of ablative and subsequent surgery and, most
