Creating an Optimal 3D Printed Model for Temporal Bone Dissection Training

Takahashi, Kuniyuki; Morita, Yuka; Ohshima, Shinsuke; Izumi, Shuji; Kubota, Yamato; Yamamoto, Yoshiharu; Takahashi, Sugata; Horii, Arata

doi:10.1177/0003489417705395

Cited by 37 publications

(14 citation statements)

References 11 publications

(17 reference statements)

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“…Although cadaveric specimens have high anatomical and physical validity, they are often challenging to obtain, lack patient-specific pathologic features, and are associated with costs that may be prohibitive to repetitive training [9]. Several authors described temporal bone surgeries [10,11], implant treatment or maxillary sinus floor augmentation [12] training in realistic in vitro conditions using these 3D-printed models. Thus, one of the most important characteristics of a training model is the low cost.…”

Section: Introductionmentioning

confidence: 99%

3D printed bone models in oral and cranio-maxillofacial surgery: a systematic review

et al. 2020

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Aim This systematic review aimed to evaluate the use of three-dimensional (3D) printed bone models for training, simulating and/or planning interventions in oral and cranio-maxillofacial surgery. Materials and methods A systematic search was conducted using PubMed® and SCOPUS® databases, up to March 10, 2019, by following the Preferred Reporting Items for Systematic reviews and Meta-Analysis (PRISMA) protocol. Study selection, quality assessment (modified Critical Appraisal Skills Program tool) and data extraction were performed by two independent reviewers. All original full papers written in English/French/Italian and dealing with the fabrication of 3D printed models of head bone structures, designed from 3D radiological data were included. Multiple parameters and data were investigated, such as author’s purpose, data acquisition systems, printing technologies and materials, accuracy, haptic feedback, variations in treatment time, differences in clinical outcomes, costs, production time and cost-effectiveness. Results Among the 1157 retrieved abstracts, only 69 met the inclusion criteria. 3D printed bone models were mainly used as training or simulation models for tumor removal, or bone reconstruction. Material jetting printers showed best performance but the highest cost. Stereolithographic, laser sintering and binder jetting printers allowed to create accurate models with adequate haptic feedback. The cheap fused deposition modeling printers exhibited satisfactory results for creating training models. Conclusion Patient-specific 3D printed models are known to be useful surgical and educational tools. Faced with the large diversity of software, printing technologies and materials, the clinical team should invest in a 3D printer specifically adapted to the final application.

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Section: Introductionmentioning

confidence: 99%

3D printed bone models in oral and cranio-maxillofacial surgery: a systematic review

et al. 2020

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“…A variety of synthetic temporal bone models are available on the market, 16 with some utilising three-dimensional printing technologies. 17 The Pettigrew temporal bone is the most popular readily available synthetic temporal bone model in the UK, and has partially been validated for use in mastoid surgery simulation. 5 In our study, both experts and trainees concurred that the Pettigrew temporal bone was not a realistic model across nearly all face validity items.…”

Section: Discussionmentioning

confidence: 99%

Feasibility of ovine and synthetic temporal bone models for simulation training in endoscopic ear surgery

2019

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ObjectiveComparing the feasibility of ovine and synthetic temporal bones for simulating endoscopic ear surgery against the ‘gold standard’ of human cadaveric tissue.MethodsA total of 10 candidates (5 trainees and 5 experts) performed endoscopic tympanoplasty on 3 models: Pettigrew temporal bones, ovine temporal bones and cadaveric temporal bones. Candidates completed a questionnaire assessing the face validity, global content validity and task-specific content validity of each model.ResultsRegarding ovine temporal bone validity, the median values were 4 (interquartile range = 4–4) for face validity, 4 (interquartile range = 4–4) for global content validity and 4 (interquartile range = 4–4) for task-specific content validity. For the Pettigrew temporal bone, the median values were 3.5 (interquartile range = 2.25–4) for face validity, 3 (interquartile range = 2.75–3) for global content validity and 3 (interquartile range = 2.5–3) for task-specific content validity. The ovine temporal bone was considered significantly superior to the Pettigrew temporal bone for the majority of validity categories assessed.ConclusionTympanoplasty is feasible in both the ovine temporal bone and the Pettigrew temporal bone. However, the ovine model was a significantly more realistic simulation tool.

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“…Resolution of the models is limited by the resolution of clinical imaging and the use of micro-CT data is not possible. Another difficulty is the reproduction of air-containing spaces ( 12 ). Even though the present technique succeeded in reproducing reliably larger structures such as the cochlea or air cells, making the models adequate for training adult cortical mastoidectomy ( 13 , 14 ), smaller structures such as the semicircular canals or ossicles are reproduced much less accurate.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of an Infant Temporal-Bone Model as Training Tool

Probst

Stump

Mokosch³

et al. 2018

Otology &Amp; Neurotology

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Objective:Evaluation of the face validity of a new artificial model of an infant temporal bone (TB) suitable for surgical training, including cochlear implantation.Subject:Micro-computer-tomography images were obtained from a TB specimen of a 1-year-old normal infant available in an anatomical collection. The TB model was designed and constructed using these images and techniques known from similar models of adult TB.Intervention:Fifteen otology departments in Austria, Germany, and Switzerland rated the infant TB model and compared it with the established adult TB model manufactured commercially by the same company.Main Outcome Measure:The otologists responded to a semi-quantitative questionnaire with a rating scale ranging from 1 (strongly disagree) to 5 (strongly agree). Macroscopic and microscopic anatomic details, drilling experience, and surgical landmarks were rated. The surgical procedures included mastoidectomy, posterior tympanotomy, cochleostomy, and insertion of a cochlear electrode.Results:Overall ratings were similar (3.9) for both the infant and the adult TB models, with ranges of 3.47 to 4.47 (infant model) and 3.5 to 4.33 (adult model). Ratings of specific anatomical details differed as a function of type of model, but without preference of one model over the other.Conclusions:Infant TB models can be used similarly as adult TB models for surgical training, including cochlear implantation. They may deserve a more important role in surgical training because cadaveric human temporal bones of infants are not available.

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Creating an Optimal 3D Printed Model for Temporal Bone Dissection Training

Abstract: Although this model still does not embody perfect reproducibility, it proved sufficiently practical for use in surgical training.

Cited by 37 publications

References 11 publications

3D printed bone models in oral and cranio-maxillofacial surgery: a systematic review

3D printed bone models in oral and cranio-maxillofacial surgery: a systematic review

Feasibility of ovine and synthetic temporal bone models for simulation training in endoscopic ear surgery

Evaluation of an Infant Temporal-Bone Model as Training Tool

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