Maxillary Cutting Guide for Executing a Simulated Osteotomy and Removing the Bony Interference During Orthognathic Surgery

Kang, Sang-Hoon; Kim, Hak-Jin; Park, Ha-Won; Lee, Sang-Hwy

doi:10.1115/1.4031162

Cited by 6 publications

(3 citation statements)

References 7 publications

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“…The development of surgical guides for orthognathic or facial surgery has been recently reported [ 1 , 12 , 13 , 16 ]. A cutting guide for orthognathic surgery has many advantages, such as the enhanced ability to adjust the shape of the osteotomy line and to predict the amount and region of prematurity, while minimizing operation time and possible damage to vital structures [ 17 , 18 ].…”

Section: Discussionmentioning

confidence: 99%

“…A horseshoe-shaped orthognathic surgical guide or wafer was designed based on the simulated preoperative mandibular and postoperative maxillary occlusion. An orthognathic maxillary cutting guide was also designed to enable the maxillary cut and interference removal for maxillary repositioning at the maxillary anterior wall near the zygomatic cut (Patent cooperation treaty (PCT) KR2014/010282; Korean patent 10-1478009) [ 12 ]. The reference hole for repositioning the maxilla also served to place the cutting guide for reduction malarplasty.…”

Section: Methodsmentioning

confidence: 99%

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Reduction malarplasty using a simulated surgical guide for asymmetric/prominent zygoma

et al. 2022

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Background The present study introduces a reduction malarplasty using a three-dimensional (3D)-printed surgical guide and evaluates the guide’s technical applicability. Methods Twenty malarplasties were performed for 12 subjects with zygomatic asymmetry/prominency using the current method. 3D reconstruction of the craniomaxillofacial region and fine dental occlusion was made with image data from computed tomograpy and dental scanning. A computer-assisted surgical simulation was performed for reduction malarplasty and a surgical guide was designed for later 3D printing. The manufactured surgical guide was introduced to the operation field to guide the surgery; its surgical accuracy was confirmed by comparing five corresponding points from preoperative simulation and postoperative data. Results We successfully performed the reduction malarplasty with the surgical guide. The accuracy level of surgery fell to 0.93 mm of total median difference for the corresponding zygoma points of preoperative simulations and postoperative zygoma. The anterior and upper points showed less error level (0.59 and 0.73 mm difference, respectively) than did other points. Conclusions We developed a computer-assisted surgical technique using a surgical guide for asymmetrical/prominent zygoma which proved to be simple, practical, and accurate; it is expected to help surgeons perform reduction malarplasty with ease and accuracy.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Reduction malarplasty using a simulated surgical guide for asymmetric/prominent zygoma

et al. 2022

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“…Designing a composite craniomaxillary-dental model by replacing the dental part of a CT model with a scanned dental model allows accurate dentofacial analysis and surgical simulation with delicate interdental occlusion. Moreover, the designed surgical device can be accurately produced following the simulation and computer-aided design (CAD) using 3D printing with stereolithography technique [ 2 ]. These digital trends can be applied to distraction as well as to the general treatment of maxillofacial deformity [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Fully-customized distraction assembly for maxillofacial distraction osteogenesis: a novel device and its experimental accuracy verification

Kang

Tak

Park³

et al. 2020

Head Face Med

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Background A new distraction osteogenesis assembly system comprising a fully customized CAD/CAM-based fixation unit and ready-made distraction unit was developed. The aim of this study was to introduce our new distraction system and to evaluate its accuracy level in a sampled mandibular distraction osteogenesis. Methods Our system consists of a fully customized CAD/CAM-based fixation plate unit with two plates for each moving and anchoring part, and a ready-made distraction unit with attachment slots for fixation plates. The experimental distractions were performed on 3D-printed mandibles for one control and two experimental groups (N = 10 for each group). All groups had reference bars on the chin region and teeth to measure distraction accuracy. The control group had the classical ready-made distraction system, and experimental groups 1 and 2 were fitted with our new distraction assembly using a different distractor-positioning guide design. All distracted experimental mandibles were scanned by CT imaging, then superimposed on a 3D simulation to get their discrepancy levels. Results The measured 3D distances between the reference landmarks of the surgical simulations and the experimental surgeries for the three groups were significantly different (p < 0.0001) by statistical analysis. The errors were greater in the control group (with a total average of 19.18 ± 3.73 mm in 3D distance between the simulated and actual reference points) than those in the two experimental groups (with an average of 3.68 ± 1.41 mm for group 1 and 3.07 ± 1.39 mm for group 2). The customized distraction assembly with 3D-printed bone plate units in group 1 and 2, however, did not show any significant differences between simulated and actual distances (p > 0.999). Conclusion Our newly-developed distraction assembly system with CAD/CAM plate for the distraction osteogenesis of the mandible produced a greater level of accuracy than that of a conventional distraction device. The system appears to address existing shortcomings of conventional distraction devices, including inaccuracy in vector-controlled movement of the system. However, it also needs to be further developed to address the requirements and anatomical characteristics of specific regions.

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Systematic review of the software used for virtual surgical planning in craniomaxillofacial surgery over the last decade

Tel

Arboit

Martino

et al. 2023

International Journal of Oral and Maxillofacial Surgery

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Maxillary Cutting Guide for Executing a Simulated Osteotomy and Removing the Bony Interference During Orthognathic Surgery

Cited by 6 publications

References 7 publications

Reduction malarplasty using a simulated surgical guide for asymmetric/prominent zygoma

Reduction malarplasty using a simulated surgical guide for asymmetric/prominent zygoma

Fully-customized distraction assembly for maxillofacial distraction osteogenesis: a novel device and its experimental accuracy verification

Systematic review of the software used for virtual surgical planning in craniomaxillofacial surgery over the last decade

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