Design Workflow for Mandibular Reconstruction. Opportunities and Limitations of In-house Virtual Surgical Planning

Ostas, Daniel T.; Hedeșiu, Mihaela; Roman, Călin Rareş; Cosma, Cosmin; Ciurea, Mircea; Rotaru, Horaţiu

doi:10.1007/s40846-021-00633-z

Cited by 4 publications

(2 citation statements)

References 20 publications

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“…However, there is a lack of description of design digital chains for these guides. Maxillofacial reconstruction seems to be the most prominent field for developing SCG design workflows ( Numajiri et al, 2018 ; Ostas et al, 2021 ), but it remains rare. To the best of our knowledge, such workflows do not exist for pelvic applications in the literature, especially for tumor resection surgeries.…”

Section: Discussionmentioning

confidence: 99%

Digital chain for pelvic tumor resection with 3D-printed surgical cutting guides

Biscaccianti

Fragnaud

Hascoët

et al. 2022

Front. Bioeng. Biotechnol.

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Surgical cutting guides are 3D-printed customized tools that help surgeons during complex surgeries. However, there does not seem to be any set methodology for designing these patient-specific instruments. Recent publications using pelvic surgical guides showed various designs with no clearly classified or standardized features. We, thus, developed a systematic digital chain for processing multimodal medical images (CT and MRI), designing customized surgical cutting guides, and manufacturing them using additive manufacturing. The aim of this study is to describe the steps in the conception of surgical cutting guides used in complex oncological bone tumor pelvic resection. We also analyzed the duration of the surgical cutting guide process and tested its ergonomics and usability with orthopedic surgeons using Sawbones models on simulated tumors. The original digital chain made possible a repeatable design of customized tools in short times. Preliminary testing on synthetic bones showed satisfactory results in terms of design usability. The four artificial tumors (Enneking I, Enneking II, Enneking III, and Enneking I+IV) were successfully resected from the Sawbones model using this digital chain with satisfactory ergonomic outcomes. This work validates a new digital chain conception and production of surgical cutting guides. Further works with quantitative margin assessments on anatomical subjects are needed to better assess the design implications of patient-specific surgical cutting guide instruments in pelvic tumor resections.

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Section: Discussionmentioning

confidence: 99%

Digital chain for pelvic tumor resection with 3D-printed surgical cutting guides

Biscaccianti

Fragnaud

Hascoët

et al. 2022

Front. Bioeng. Biotechnol.

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“…Subsequently, the measurement points were placed on the plates, and the distances between the two surfaces were measured. The software computed, from every point of the polygon on the backside of the plates, the vertical distance to the surface of the mandible (GOM Inspect V8 software) [31]. The measurement result of each testing was automatically saved in an Excel sheet.…”

Section: Analysis Of the Accuracy Of The Platementioning

confidence: 99%

Analyzing the Fitting of Novel Preformed Osteosynthesis Plates for the Reduction and Fixation of Mandibular Fractures

Fuessinger¹,

Gass²,

Woelm³

et al. 2021

JCM

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Purpose: The known preformed osteosynthesis plates for the midface are helpful tools for a precise and fast fixation of repositioned fractures. The purpose of the current study is to analyze the precision of newly developed prototypes of preformed osteosynthesis plates for the mandible. Methods: Four newly designed preformed osteosynthesis plates, generated by a statistical shape model based on 115 CT scans, were virtually analyzed. The used plates were designed for symphyseal, parasymphyseal, angle, and condyle fractures. Each type of plate has three different sizes. For analysis, the shortest distance between the plate and the bone surface was measured, and the sum of the plate-to-bone distances over the whole surface was calculated. Results: A distance between plate and bone of less than 1.5 mm was defined as sufficient fitting. The plate for symphyseal fractures showed good fitting in 90% of the cases for size M, and in 84% for size L. For parasymphyseal fractures, size S fits in 80%, size M in 68%, and size L in 65% of the cases. Angle fractures with their specific plate show good fitting for size S in 53%, size M in 60%, and size L in 47%. The preformed plate for the condyle part fits for size S in 75%, for size M in 85%, and for size L in 74% of the cases. Conclusion: The newly developed mandible plates show sufficient clinical fitting to ensure adequate fracture reduction and fixation.

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Additive manufacturing in polymer research: Advances, synthesis, and applications

Islam,

Mobarak,

Rimon

et al. 2024

Polymer Testing

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Design Workflow for Mandibular Reconstruction. Opportunities and Limitations of In-house Virtual Surgical Planning

Cited by 4 publications

References 20 publications

Digital chain for pelvic tumor resection with 3D-printed surgical cutting guides

Digital chain for pelvic tumor resection with 3D-printed surgical cutting guides

Analyzing the Fitting of Novel Preformed Osteosynthesis Plates for the Reduction and Fixation of Mandibular Fractures

Additive manufacturing in polymer research: Advances, synthesis, and applications

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