Virtual Surgical Planning System for Mandible Reconstruction

2016 ◽  
Vol 21 (2) ◽  
pp. 196-203
Author(s):  
Hannah Kim ◽  
Youngjun Kim ◽  
Hyunchul Cho ◽  
Eung June Shim ◽  
Deukhee Lee ◽  
...  
Keyword(s):  
Surgical Planning ◽  
Planning System ◽  
Mandible Reconstruction ◽  
Virtual Surgical Planning

Mandible reconstruction with free fibula flaps: Outcome of a cost-effective individual planning concept compared with virtual surgical planning

2017 ◽  
Vol 45 (8) ◽  
pp. 1246-1250 ◽  
Author(s):  
Niklas Rommel ◽  
Marco Rainer Kesting ◽  
Nils Hagen Rohleder ◽  
Florian Martin Josef Bauer ◽  
Klaus-Dietrich Wolff ◽  
...  
Keyword(s):  
Surgical Planning ◽  
Cost Effective ◽  
Mandible Reconstruction ◽  
Virtual Surgical Planning ◽  
Free Fibula ◽  
Individual Planning ◽  
Planning Concept

scholarly journals The Use of a CAD/CAM Surgical Obturator Without Impressions to Restore a Maxillectomy Defect

2021 ◽  
Vol 6 ◽  
pp. 247275122199297
Author(s):  
Nicholas Callahan ◽  
Sarah L. Moles ◽  
Michael R. Markiewicz
Keyword(s):  
Surgical Planning ◽  
Tumor Resection ◽  
Free Tissue Transfer ◽  
Digital Impression ◽  
Head And Neck Reconstruction ◽  
Autologous Reconstruction ◽  
Form And Function ◽  
Virtual Surgical Planning ◽  
Tissue Transfer ◽  
Cad Cam

Immediate obturation of the patient undergoing maxillectomy who is not undergoing formal autologous reconstruction is important for immediate form and function of the patient. Exophytic tumors, that are large in dimension can make pre-operative obturator formation challenging. Traditional methods of obturator fabrication involve a physical or digital impression. Preoperative virtual surgical planning for tumor resection and reconstruction using free tissue transfer has become a mainstay in head and neck reconstruction. We describe a variation of this for a patient unable to undergo free tissue transfer where the authors used preoperative virtual surgical planning and CAD/CAM technologies to perform tumor resection, and fabricated an obturator based on the CT imaging alone.

scholarly journals A detailed analysis of anatomical plausibility of crossed and uncrossed streamline rendition of the dentato-rubro-thalamic tract (DRT(T)) in a commercial stereotactic planning system

2021 ◽  
Author(s):  
Volker A. Coenen ◽  
Bastian E. Sajonz ◽  
Peter C. Reinacher ◽  
Christoph P. Kaller ◽  
Horst Urbach ◽  
...  
Keyword(s):  
Surgical Planning ◽  
Ground Truth ◽  
Planning System ◽  
Single Subject ◽  
Fiber Structure ◽  
Native Space ◽  
Volume Of Interest ◽  
Mri Scans ◽  
Magnetic Resonance Imaging Mri ◽  
The Individual

Abstract Background An increasing number of neurosurgeons use display of the dentato-rubro-thalamic tract (DRT) based on diffusion weighted imaging (dMRI) as basis for their routine planning of stimulation or lesioning approaches in stereotactic tremor surgery. An evaluation of the anatomical validity of the display of the DRT with respect to modern stereotactic planning systems and across different tracking environments has not been performed. Methods Distinct dMRI and anatomical magnetic resonance imaging (MRI) data of high and low quality from 9 subjects were used. Six subjects had repeated MRI scans and therefore entered the analysis twice. Standardized DICOM structure templates for volume of interest definition were applied in native space for all investigations. For tracking BrainLab Elements (BrainLab, Munich, Germany), two tensor deterministic tracking (FT2), MRtrix IFOD2 (https://www.mrtrix.org), and a global tracking (GT) approach were used to compare the display of the uncrossed (DRTu) and crossed (DRTx) fiber structure after transformation into MNI space. The resulting streamlines were investigated for congruence, reproducibility, anatomical validity, and penetration of anatomical way point structures. Results In general, the DRTu can be depicted with good quality (as judged by waypoints). FT2 (surgical) and GT (neuroscientific) show high congruence. While GT shows partly reproducible results for DRTx, the crossed pathway cannot be reliably reconstructed with the other (iFOD2 and FT2) algorithms. Conclusion Since a direct anatomical comparison is difficult in the individual subjects, we chose a comparison with two research tracking environments as the best possible “ground truth.” FT2 is useful especially because of its manual editing possibilities of cutting erroneous fibers on the single subject level. An uncertainty of 2 mm as mean displacement of DRTu is expectable and should be respected when using this approach for surgical planning. Tractographic renditions of the DRTx on the single subject level seem to be still illusive.

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