Surgical accuracy of three-dimensional virtual planning: a pilot study of bimaxillary orthognathic procedures including maxillary segmentation

Stokbro, Kasper; Aagaard, Esben; Torkov, Peter; Bell, R. Bryan; Thygesen, Torben

doi:10.1016/j.ijom.2015.07.010

Cited by 76 publications

(61 citation statements)

References 37 publications

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“…Using varied protocols, previous studies showed that the 3D VSP is accurate to predict maxillary positioning, with mean linear differences within the 2 mm . As in the present study, in most studies, accuracy was assessed by measuring the mean linear difference between reference points. Tucker et al evaluated accuracy through the linear difference between the superimposed surfaces.…”

Section: Discussionmentioning

confidence: 70%

“…The aim of this study was to evaluate the accuracy of the 3D VSP for the maxillary positioning and orientation in patients undergoing bimaxillary orthognathic surgery comparing the planned and postsurgical outcomes. Based on previous studies, we assumed a positional difference between the planned and postsurgical outcomes of <2 mm as clinically insignificant, as well as orientation differences of <4° . Although a cut‐off value of 2 mm for clinical significance may seem high, we believe it is important to consider a literature well‐established value to interpret our results.…”

Section: Discussionmentioning

confidence: 98%

“…Then, these superimposed images were imported into a computer graphics software (3DS Max ® , Autodesk Inc) in STL format. In this program, the landmark‐based method was used to quantify the linear and angular differences between the VSP and the postoperative outcomes . Three maxillary reference points were analysed: (a) in the midline between the central incisors; (b) in the mesiobuccal cusp tip of the left first molar; (c) in the mesiobuccal cusp tip of the right first molar.…”

Section: Methodsmentioning

confidence: 99%

“…Two‐dimensional virtual surgical planning (VSP) has been used for more than 50 years, through patient's clinical data, imaging exams, lateral cephalograms, plaster dental models and semi‐adjustable articulators . With the advancement of imaging technology, 3D VSP has consolidated as an alternative that provides accurate surgical results, creating new possibilities for the treatment of dentofacial deformities, predicting the repercussion of surgical movements in the skull bases and adjacent soft tissues, and eliminating many of the laboratory steps …”

Section: Introductionmentioning

confidence: 99%

“…It allows high‐quality surgical planning, with autonomy and safety to simulate different surgical movements, overcoming several limitations of 2D planning, in which small errors can accumulate during its various steps, leading to inaccuracies . Moreover, it becomes an important communication tool among professionals . An adaptation of the CASS protocol with fewer steps was proposed, although it has not yet been widely disclosed.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Accuracy of 3D virtual surgical planning for maxillary positioning and orientation in orthognathic surgery

Tonin

Filho

Yamashita

et al. 2020

Orthod Craniofacial Res

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Objective This retrospective and observational study evaluated the accuracy of a 3D virtual surgical planning (VSP) for the maxillary positioning and orientation in patients undergoing bimaxillary orthognathic surgery, comparing the planned and postoperative outcomes. Setting and Sample Population Seventy consecutive patients of both sexes, who were submitted to bimaxillary orthognathic surgery between 2015 and 2019 were included in our study. Material and Methods The patients were evaluated by fusing preoperative planning and postoperative outcome using cone‐beam computed tomography scan evaluation. Three‐dimensional VSP and postoperative outcomes were compared by using three linear and three angular measurements. The main outcome interest was the difference between the VSP movement, and the surgical movement obtained. The success criterion adopted was a mean linear difference of <2 mm and a mean angular difference of <4°. Results Results were analysed using a linear mixed model with fixed and random effects, at α = .05. No significant statistical differences were found for linear and angular measurements between the planned and postsurgical outcomes (P > .05). All overlapping points presented values within the range considered clinically irrelevant (<2 mm; <1°). Conclusions Three‐dimensional VSP was executed with a high degree of accuracy. When comparing the planned and postsurgical outcomes, all overlapping points presented values within the range considered clinically irrelevant.

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Section: Discussionmentioning

confidence: 70%

Section: Discussionmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Accuracy of 3D virtual surgical planning for maxillary positioning and orientation in orthognathic surgery

Tonin

Filho

Yamashita

et al. 2020

Orthod Craniofacial Res

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Preoperative planning for jugular‐foramen tumors: Preparation of a three‐dimensional surgical drawing

Yang

Zhang

2021

Int J Imaging Syst Tech

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The goal of the article shows a new technique to provide three‐dimensional (3D) atlas to be used for a preoperative planning for safe resection of jugular‐foramen tumor. A surgical‐planning drawing was created based on the test results to provide precise guidance to neurosurgeons. Using magnetic resonance imaging and computed tomography scans of the head as guide images, we generated a 3D surgical atlas. We first read the MRI and CT data into Mimics 10.0 (Materialize, Leuven, Belgium) and matched the orientation of the imaging with the actual head position. Anatomical structures captured on the scans were segmented into target areas, and then reconstructed using segmentation and model‐building tools. All 3D models were imported into 3ds Max11.0 (Autodesk, Inc., The United States) to generate a surgical atlas. We used the 3D atlas for surgical simulation to identify the optimal surgical approach, and then prepared a surgical drawing for surgery. The atlas was created using scans of one patient. We generated a 3D digital atlas of anatomical structures of the jugular‐foramen region for visualization, manipulation, and interaction in a virtual 3D environment and prepared a surgical drawing for jugular‐foramen tumors. The 3D atlas contained MRI information. In 3D atlas, a mouse can be used to actively interact with the model by manipulating viewer orientation, changing model transparency, matching 2D image with 3D reconstructions, removing or adding structures sequentially to show complex anatomical pathways or relationships. The atlas could be subjected to surgical simulation. We create a 3D atlas and surgical planning drawing of a jugular foramen tumor. The 3D surgical‐planning atlas may provide precise guidance for surgical operations.

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Virtual Surgical Planning and Three-Dimensional Simulation in Orthognathic Surgery

Choi

Lee

2021

The Surgery-First Orthognathic Approach

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Surgical accuracy of three-dimensional virtual planning: a pilot study of bimaxillary orthognathic procedures including maxillary segmentation

Cited by 76 publications

References 37 publications

Accuracy of 3D virtual surgical planning for maxillary positioning and orientation in orthognathic surgery

Accuracy of 3D virtual surgical planning for maxillary positioning and orientation in orthognathic surgery

Preoperative planning for jugular‐foramen tumors: Preparation of a three‐dimensional surgical drawing

Virtual Surgical Planning and Three-Dimensional Simulation in Orthognathic Surgery

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