Three-dimensional Printing in Maxillofacial Surgery: Hype versus Reality

Aldaadaa, Alaa; Owji, Nazanin; Knowles, Jonathan C.

doi:10.1177/2041731418770909

Cited by 50 publications

(34 citation statements)

References 27 publications

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“…These synthetic models improve our understanding of preoperative anatomy in individual cases, allowing us to optimize our surgical approaches and introduce novel techniques tailored to a specific patient. This results in reduction of operative time, reduces surgical stress and minimizes perioperative errors [ 46 , 47 ]. In this clinical study, we reported five clinical cases assisted by 3D printing.…”

Section: Discussionmentioning

confidence: 99%

The Syndrome of Elongated Styloid Process, the Eagle’s Syndrome—From Anatomical, Evolutionary and Embryological Backgrounds to 3D Printing and Personalized Surgery Planning. Report of Five Cases

et al. 2020

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Background and Objectives: The symptoms of Eagle’s syndrome are associated with the elongated styloid process of the temporal bone or calcification of the stylohyoid ligament. The first mention of pain syndrome associated with the elongated styloid process dates back to 1937, when it was described by Watt Weems Eagle. Over the last decade, experts in the field have shown a lively interest in the issue of the relationship between the elongated styloid process and various symptoms. This article presents the correlation between the clinical signs of Eagle’s syndrome and alterations in surrounding anatomical structures. It includes a brief review of the evolutionary, embryological and clinical anatomical background of the elongated styloid process. Materials and Methods: Between 2018 and 2019, five patients were admitted to our workplace with 1–3-year history of bilateral or unilateral throat pain, otalgia and pharyngeal foreign body sensation. As a therapeutic novelty in the surgical approach to this condition, we used individual 3D printed models to measure and identify the exact location of the resection of the styloid process without damaging the surrounding anatomical structures, such as the facial, accessory, hypoglossal, and vagal nerves; the internal jugular vein; and the internal carotid artery. Results: Compared to traditional surgical methods without 3D models, 3D models helped to better identify cutting edges and major landmarks used in surgical treatment of Eagle’s syndrome. Printed models provided assistance with the exact location of the styloid process resection position without damaging the surrounding anatomical structures such as the facial, accessory, hypoglossal, and vagal nerves; the internal jugular vein; and the internal carotid artery. Conclusion: In our clinical report, we used 3D printed models for navigation and planning during surgical procedures involving resections of the elongated styloid process. Additionally, we can formulate a new hypothesis: the elongated styloid process is a form of atavism of the bony hyoid apparatus in our evolutionary ancestors that is evolutionarily encoded or arises from disrupted degeneration of the middle portion of embryonal Reichert´s cartilage of the second pharyngeal arch. Under normal conditions, this portion does not ossify but degenerates and transforms into a connective tissue band, the future stylohyoid ligament.

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Section: Discussionmentioning

confidence: 99%

The Syndrome of Elongated Styloid Process, the Eagle’s Syndrome—From Anatomical, Evolutionary and Embryological Backgrounds to 3D Printing and Personalized Surgery Planning. Report of Five Cases

et al. 2020

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“…Moreover, the ethical issues regarding 3D printed models should not be ignored. However, despite potential cost constraints, the prices of 3D printing equipment, materials, and software have been declining, [34,36] and more and more educational models of 3D printing are becoming learning tools for students [37]. Therefore, we hope that 3D printing models will play a role not only in surgery and communication but also in the anatomy classroom.…”

Section: Discussionmentioning

confidence: 99%

The role of 3D printed model in the teaching of human anatomy: a meta-analysis

Ye¹,

Jiang²,

Nie³

et al. 2020

Preprint

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Background Three-dimensional (3D) printing is an emerging technology that is widely used in medical education. This study compared 3D printed models with conventional models to provide a better understanding of the use of 3D printed models in the teaching of anatomy. Methods PubMed, Embase, EBSCO, SpringerLink, and Nature databases were searched systematically for studies published up to December 2019 in the English language. This study complies with PRISMA guidelines. In this study, a meta-analysis of continuous data and binary data was carried out. Both descriptive analysis and statistical analysis were adopted. Results Compared with students in the conventional group, students in the 3D printing group showed several advantages in performance testing, time consumption, students' intention, and usefulness. The leave-one-out method further confirmed the stability of the results. Conclusions Compared with students in the conventional group, students in the 3D printing group had advantages in answering accuracy and answering time. For most anatomical sites, the 3D group has certain advantages in terms of test scores and time consumption. More students in the 3D printing group were satisfied with their learning compared with students in the conventional group. The role of the 3D printing model in human anatomy education is worth looking forward to.

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“…Over the last years, poly(εcaprolactone) (PCL) has been widely investigated, due to its slow degradation rate, for producing scaffolds, electrospun fibers or composites for cartilage TE, considering the slow rate of cartilage regeneration (Annabi et al, 2011;Garrigues et al, 2014;Legemate et al, 2016;Olubamiji et al, 2016). In addition to having excellent biocompatibility and adequate mechanical properties, it has been widely used for the production of complex structures by AM for craniofacial defects reconstruction (Aldaadaa et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Multi-Material Implants for Temporomandibular Joint Disc Repair: Tailored Additive Manufacturing Production

Moura

Trindade

Vieira

et al. 2020

Front. Bioeng. Biotechnol.

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Temporomandibular disorders (TMD) affect a substantial percentage of the population, and the resources spent on their treatment are considerable. Despite the worldwide efforts around Tissue Engineering of the temporomandibular joint (TMJ) disc, a proper implant offering a long-term solution for TMD was not yet developed. To contribute to these efforts, this work is focused on the research and development of implants for TMJ disc regeneration. Scaffolds and hydrogels mimicking the TMJ disc of black Merino sheep were produced using different materials, poly(ε-caprolactone) (PCL) and poly(ethylene glycol) diacrylate (PEGDA), and as a multi-material structure. Different parameters of the scaffold manufacturing were assessed: the influence of processing temperatures, filament diameter, and biological environment. Moreover, two multimaterial approaches were also assessed, scaffold with a hydrogel shell and scaffold with a hydrogel core. It was found that increasing temperature, the scaffolds' porosity decreases, increasing their compressive modulus. Decreasing the filament size (300 to 200 µm) decreases the compressive modulus to almost half of the initial value. Scaffolds with 200 µm filaments are the ones with a closer modulus to the native disc and their properties are maintained under hydrated conditions. The introduction of a hydrogel core in these scaffolds presented better mechanical properties to TMJ disc substitution.

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Three-dimensional Printing in Maxillofacial Surgery: Hype versus Reality

Abstract: Three-dimensional printing technology is getting more attention recently, especially in the craniofacial region. This is a review of literature enlightening the materials that have been used to date and the application of such technology within the scope of maxillofacial surgery.

Cited by 50 publications

References 27 publications

The Syndrome of Elongated Styloid Process, the Eagle’s Syndrome—From Anatomical, Evolutionary and Embryological Backgrounds to 3D Printing and Personalized Surgery Planning. Report of Five Cases

The Syndrome of Elongated Styloid Process, the Eagle’s Syndrome—From Anatomical, Evolutionary and Embryological Backgrounds to 3D Printing and Personalized Surgery Planning. Report of Five Cases

The role of 3D printed model in the teaching of human anatomy: a meta-analysis

Multi-Material Implants for Temporomandibular Joint Disc Repair: Tailored Additive Manufacturing Production

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