Current status of surgical planning and transfer methods in orthognathic surgery

Pascal, Elliot; Majoufre, Claire; Bondaz, M.; Courtemanche, Adrien; Berger, M; Boulétreau, P.

doi:10.1016/j.jormas.2018.02.001

Cited by 23 publications

(21 citation statements)

References 53 publications

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“…In terms of accuracy, the comparison of the loosed bone graft repositioning with and without navigated guidance was performed. The freehand repositioning was conducted by intraoperative measurements, and the loosed bone graft was determined by trial and error [15]. Both the non-navigated (free-hand operation) and image-guided reposition operation were repeated ten times on the same phantom respectively, and each intraoperative repositioned bone model was saved as a file in '.stl' format and exported to specific self-developed software for comparing with the preoperative plan through the graphical post-processing.…”

Section: Accuracy Verificationmentioning

confidence: 99%

A real time image-guided reposition system for the loosed bone graft in orthognathic surgery

Chen

et al. 2021

Computer Assisted Surgery

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In traditional orthognathic surgery, the dental splint technique is typically used to assist surgeons to reposition the maxilla or mandible. However, the design and manufacturing of dental splints is time-consuming and labor-intensive, and the templates may not applicable for some complicated cases due to the anatomic intricacies in the maxillofacial region. During recent years, computer-aided navigation technology has been widely used in oral and maxillofacial surgery. However, due to the limitation of current calibration and registration methods, it has been rarely reported for the motion tracking of intraoperative reposition for the loosed bone graft. In this study, a novel surgical navigation system was developed. With the use of this system, not only the surgical saw can be tracked in real-time, but also the loosed bone graft can be navigated under the guidance of the interactive 2D and 3D views until it is aligned with the preoperatively planned position. The phantom experiments validated the feasibility of our surgical navigation system, and the mean error of image-guided reposition was 1.03 ± 0.10 mm, which was significantly more accurate than the mean error of 5.57 ± 1.40 mm based on the non-navigated methods.

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Section: Accuracy Verificationmentioning

confidence: 99%

A real time image-guided reposition system for the loosed bone graft in orthognathic surgery

Chen

et al. 2021

Computer Assisted Surgery

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“…These guides have positioning arms which make it possible to position the operated jaw(s) in the desired position using the skull base as reference. Evidence has demonstrated that they are as accurate as conventional VSP 3D printed splints in routine cases with greater accuracy in complex facial asymmetry cases [46][47][48].…”

Section: Body Dysmorphic Disordermentioning

confidence: 99%

Current Orthognathic Practice in India: Do We Need to Change?

Mathew

Mathai

David

et al. 2019

J. Maxillofac. Oral Surg.

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The last decade or so has seen paradigm shifts in the various aspects of orthognathic surgery. A lot of these changes are to do with digitalization of the orthodonticsurgical workflow, optimization of surgery-first protocols, virtual surgical planning-based 3D printing solutions and changing patient-health-care dynamics. The aim of this article is to provide evidence-based recommendations that are both practical and economically viable for the current orthognathic practice in India.

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“…This phase has several important functions, such as defining, simulating, and confirming the feasibility of the surgical movements necessary to bring the skeletal bases to the planned position, to obtain the appropriate maxillomandibular and occlusal relationship. Therefore, the surgical planning provides to the dental laboratory the necessary information for the production of the surgical splints, which constitute the intraoperative guide for jaws repositioning into the operating room [ 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

“…Technological progress led to the transition to digital methods, based on software that allows the performance of surgical planning on a 3D reconstruction of the patient’s skull, obtained from a 3D radiographic imaging (i.e., cone-beam computed tomography). Furthermore, with CAD/CAM technology, surgical splints can be produced by using rapid prototyping machines, with additive or subtractive techniques [ 9 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

The Accuracy of Jaws Repositioning in Bimaxillary Orthognathic Surgery with Traditional Surgical Planning Compared to Digital Surgical Planning in Skeletal Class III Patients: A Retrospective Observational Study

Barone

Stefani

Baciliero

et al. 2020

JCM

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Background: Technological progress has led to the transition to digital methods to perform surgical planning and to obtain surgical splints with CAD/CAM technologies. The present study aimed to compare the accuracy of jaw repositioning in bimaxillary orthognathic surgery using traditional and digital surgical planning in skeletal class III patients. Methods: This study included 60 skeletal class III patients divided into two groups based on the method used to perform surgical planning: traditional (T, n = 30) and digital (D, n = 30). For each patient, a 2D presurgical Visual Treatment Objective (VTO) was prepared and the outcome of the surgery was compared with that planned by using determined cephalometric measurements (ANB, SNA, SNB, Ar-Go-Me, S-Ar-Go). Statistical analysis showed that the measurements planned and those obtained after surgery were equivalent in Group D. For Group T, the analysis showed equivalence only for one of the considered measurements (ANB). By comparing the results of the two groups, Group D presented a lower level of error than Group T. Conclusions: Digital surgical planning performed significantly better in terms of accuracy of jaw repositioning than the traditional protocol.

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Current status of surgical planning and transfer methods in orthognathic surgery

Cited by 23 publications

References 53 publications

A real time image-guided reposition system for the loosed bone graft in orthognathic surgery

A real time image-guided reposition system for the loosed bone graft in orthognathic surgery

Current Orthognathic Practice in India: Do We Need to Change?

The Accuracy of Jaws Repositioning in Bimaxillary Orthognathic Surgery with Traditional Surgical Planning Compared to Digital Surgical Planning in Skeletal Class III Patients: A Retrospective Observational Study

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