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Surgical planning


The surgical planning is the preoperative method of pre-visualising a surgical intervention, in order to predefine the surgical steps and furthermore the bone segment navigation in the context of computer-assisted surgery. The surgical planning is most important in neurosurgery and oral and maxillofacial surgery. The transfer of the surgical planning to the patient is generally made using a medical navigation system.

The imagistic dataset used for surgical planning is mainly based on a CT or MRI. In oral and maxillofacial surgery, a different, more "traditional" surgical planning can be used for orthognatic surgery, based on cast models fixed into an articulator.

In order to make a surgical planning, one would need a 3D image of the patient. The starting point was made by G. Hounsfield in the 1970s, by using CT in order to record data about the anatomical situation of the patients. In the 1980s, advances were made by the radiologist M. Vannier and his team, by creating the first computed three-dimensional reconstruction from a CT dataset. In the early 1990s, the surgical planning was performed by using stereolithographic models. During the late 1990s, the first full computer-based virtual surgical planning was made for osteotomies, and then transferred to the operating theatre by a navigation system.


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