Operation planning

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Operation planning of a segment osteotomy of the jaw in the articulator (with infrared measuring instruments )
Surgical planning of a segment osteotomy of the left orbit on the stereolithography model (with infrared measuring instruments )

With the help of an operation planning, an access route or the offset of a bone segment is defined in the context of computer-aided surgery before an operation . Operation planning is of great importance in neurosurgery and oral and maxillofacial surgery . The operation plan is then generally implemented on the patient using a surgical navigation system .

Planning principles

CT or MRT image data sets usually form the basis for surgical planning. In oral and maxillofacial surgery , in contrast to this, surgical planning within the scope of dysgnathic surgery can also be carried out using plaster models of the jaws in an articulator .

Historical development

A three-dimensional image of the patient is required for planning the operation, within which the planning is carried out. Groundbreaking in this context was three-dimensional imaging in the context of computer tomography by G. Hounsfield in the 1970s. In the 1980s, the radiologist M. Vannier and his team succeeded in the first three-dimensional reconstruction of CT data on a computer. In the early 1990s, operations planning could then be carried out on stereolithography models for the first time . At the end of the 1990s, surgical planning within the scope of osteotomies was first simulated on the computer and implemented on the patient with a navigation system .

Individual evidence

  1. ^ PNT Wells: Sir Godfrey Newbold Hounsfield. In: Biogr. Mems Fell. R. Soc. 51, 2005, pp. 221-235.
  2. ^ MW Vannier, JL Marsh, JO Warren: Three Dimensional CT Reconstruction Images for Craniofacial Surgical Planning and Evaluation. ( Memento of February 28, 2008 in the Internet Archive ) In: Radiology. 150 (1), 1984, pp. 179-184.
  3. ↑ L. Klimek L , HM Klein, W. Schneider, R. Mosges, B. Schmelzer, ED Voy: Stereolithographic modeling for reconstructive head surgery. In: Acta Oto-Rhino-Laryngologica Belgica. 47 (3), 1993, pp. 329-334.
  4. ↑ R. Marmulla, H. Niederdellmann: Surgical Planning of Computer Assisted Repositioning Osteotomies  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. . @1@ 2Template: Dead Link / www.plasreconsurg.com  In: Plast Reconstr Surg . 104 (4), 1999, pp. 938-944.