{"title":"Paving new ways in forensic contexts with virtual osteology applications: csg-toolkit – a 3D osteology package for cross-sectional geometry analysis","authors":"Andreas Bertsatos , Nefeli Garoufi , Mariniki Koliaraki , Maria-Eleni Chovalopoulou","doi":"10.1016/j.stlm.2022.100094","DOIUrl":"10.1016/j.stlm.2022.100094","url":null,"abstract":"<div><p>This work presents the newly updated <em>csg-toolkit</em> package for GNU Octave, a user-friendly virtual osteology software that can compute and visualize the diaphyseal cross-sectional geometric (CSG) properties of the long bones of the lower and upper limbs. The CSG properties of the diaphysis have been extensively used for mechanical loading studies and have recently shown promising results in research topics of forensic anthropology, such as skeletal activity markers, sex estimation, and osteometric sorting. The <em>csg-toolkit</em> optimizes the computation of the CSG properties by integrating existing 3D technologies and novel computational geometry methods in osteology, so that they can be embedded in forensic applications. This new version supports a number of additional options regarding the computation and visualization of those properties, such as placement customization for the cross-sections, automatic registration and identification of the specific bone model and its alignment points, and visual inspection of the cross-sections upon generation. Additional improvements have been made that minimize the effort and time needed for analyzing a long bone. The <em>csg-toolkit</em> is a reliable alternative to the traditional Latex Cast Method. Overall, the <em>csg-toolkit</em> provides a simple, flexible, and computationally accurate method for 3D virtual long bone analysis and its free and open-source implementation can facilitate the utilization of cross-sectional geometry in forensic contexts.</p></div>","PeriodicalId":72210,"journal":{"name":"Annals of 3D printed medicine","volume":"9 ","pages":"Article 100094"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44764406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luciano Vidal , Vincent Biscaccianti , Henri Fragnaud , Jean-Yves Hascoët , Vincent Crenn
{"title":"Semi-automatic segmentation of pelvic bone tumors: Usability testing","authors":"Luciano Vidal , Vincent Biscaccianti , Henri Fragnaud , Jean-Yves Hascoët , Vincent Crenn","doi":"10.1016/j.stlm.2022.100098","DOIUrl":"https://doi.org/10.1016/j.stlm.2022.100098","url":null,"abstract":"<div><p>In this study, we focus on studying inter-user variability of a semi-automatic image processing pipeline used for 3D model production and subsequent PSI design in pelvic tumor resection. Six retrospective cases of pelvic bone tumors were segmented. Three different users (trained engineer (TE), orthopedic student (OS), expert orthopedic surgeon (OE)) performed multimodal semi-automatic segmentation on registered CT and MRI sequences. Inter-user variability was evaluated on the tumor models using the symmetrical Hausdorff distances and the DICE similarity coefficient. The mean symmetrical Hausdorff distance was 1.1 mm between TE and OS, 3.8 mm between TE and OE, and 3.6 mm between OS and OE. The mean values for the DICE similarity coefficient were 0.91 between TE and OS, 0.79 between TE and OE, and 0.82 between OS and OE. In patient 5, the DICE coefficient between TE and OE, and OS and OE dropped to 0.18 and 0.24 respectively. This study suggests that the inter-user variability between two segmentations of the same tumor cannot be overlooked, especially in complex pelvic tumors: OE expertise seems mandatory for tumor segmentation validation. The collaboration between engineers and clinicians also seems crucial for developing this type of pipeline for patient-specific instruments design purposes.</p></div>","PeriodicalId":72210,"journal":{"name":"Annals of 3D printed medicine","volume":"9 ","pages":"Article 100098"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49734418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A systematic review on materials, design, and manufacturing of swabs","authors":"Vedant Vashist , Neil Banthia , Swapnil Kumar , Prajwal Agrawal","doi":"10.1016/j.stlm.2022.100092","DOIUrl":"10.1016/j.stlm.2022.100092","url":null,"abstract":"<div><p>From simple cleaning to metagenomic studies and now the detection of the SARS-2 virus, swabs are absorbent pads with handles that hold significant promise in several applications and properties. Furthermore, the swab is now used for a wide range of medical purposes, such as the collection of bacteria and other pathogens such as influenza and H1N1. Various designs and materials used for the tip have led to a wide range of applications. In this review, we discuss the characteristics of essential tip materials such as rayon, polyester, nylon, and polyurethane in the context of specimen collection from various substrates. Further, this article reviews swab manufacturing techniques, including injection molding and calendar roll pressing, among others. In recent years, advances in additive manufacturing technology have made it possible to produce swabs in a fast and efficient manner. Furthermore, the design for additive manufacturing (DfAM) is given for the production of swabs. We also examine how 3-D printing of bio-resin swabs has revolutionized the manufacturing process, making it autonomous, quicker, more efficient, and environmentally friendly. Additionally, a shortage of medical devices for testing the SARS-2 virus has zealously motivated the medical industry to revolutionize through additive manufacturing of swabs, thus revolutionizing the medical industry. In conclusion, the limitations of the current techniques and future directions for swabs are discussed.</p></div>","PeriodicalId":72210,"journal":{"name":"Annals of 3D printed medicine","volume":"9 ","pages":"Article 100092"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48988064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kaecee Fitzgerald , Randy Bindra , Sam Canning , Geoff Tansley , David G Lloyd , Minghao Zheng , Alastair Quinn , Jayishni Maharaj , Nataliya Perevoshchikova , David John Saxby
{"title":"A human-centred design approach to hybrid manufacturing of a scapholunate interosseous ligament medical practice rig","authors":"Kaecee Fitzgerald , Randy Bindra , Sam Canning , Geoff Tansley , David G Lloyd , Minghao Zheng , Alastair Quinn , Jayishni Maharaj , Nataliya Perevoshchikova , David John Saxby","doi":"10.1016/j.stlm.2022.100084","DOIUrl":"10.1016/j.stlm.2022.100084","url":null,"abstract":"<div><p>Surgical simulation models are becoming increasingly more prevalent, complex and niche within the medical industry, yet there has been nothing developed to date that focuses specifically on scapholunate interosseous ligament (SLIL) injuries, which are common amongst a large range of ages and demographics. This study seeks to present the design process of a surgical practice rig designed to support care for the ruptured SLIL. The novelty of this practice rig is apparent, because it explores multiple 3D printing technologies in order to evaluate which is the most suitable for a medical practice rig of this nature. User feedback indicated that hybrid manufacturing applications utilising traditional fabrication techniques and 3D printing technologies was superior when accounting for the requisite movement capabilities and modularity the rig needed to process. Throughout the design process, a user-centred approach was used to translate the needs of the surgeon into a functional product. An emergent design methodology was used to incorporate feedback from medical professionals and engineers. These two methodological approaches were used to ensure the end-product fulfilled several functions: aiding surgeons to understand a new surgical implant, providing reasonable bio-fidelity in wrist function to enable surgical practice, and remaining simple enough to be understood by a patient undergoing a complex procedure. Following user tests with a variety of hand and wrist surgeons, we found this rig suitable for several applications. The rig functioned as expected, providing surgeons with a means to experiment with a new surgical implant, and proved an effective tool for patient education.</p></div>","PeriodicalId":72210,"journal":{"name":"Annals of 3D printed medicine","volume":"9 ","pages":"Article 100084"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47400108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kevin J. O'Sullivan , Aidan G. O'Sullivan , Tjaša Kermavnar , Paul McNally , Colum P. Dunne , Barry Linnane , Leonard W. O'Sullivan
{"title":"Rapid repair of percutaneous endoscopic gastrostomy tubes using three-dimensional printing: A case series","authors":"Kevin J. O'Sullivan , Aidan G. O'Sullivan , Tjaša Kermavnar , Paul McNally , Colum P. Dunne , Barry Linnane , Leonard W. O'Sullivan","doi":"10.1016/j.stlm.2022.100091","DOIUrl":"10.1016/j.stlm.2022.100091","url":null,"abstract":"<div><p>Presented are four cases involving urgent interventions to repair PEG tube failures in PEG dependent patients. We report on the practical utility of 3D printed devices designed for contingency repair of pediatric PEG tubes when other options, including surgical approaches or manufacturer supplied repairs, were not possible. The patients were dependent on PEG for nutrition and/or medication, treated at the University Hospital Limerick or Children's Hospital Ireland – Crumlin, Ireland. Each were unsuitable for surgery. PEG tube fractures occurred in 4 children (2 female, 2 male; aged 6–15 years) with chronic complex medical conditions at 5-6 years dwell time. In each case novel sealing devices were created and customized to address fractured PEG tubes. The designs were 3D printed using biocompatible materials. The PEG tube fractures were effectively sealed with the 3D printed devices within 24 h, and tube potency was completely restored in one case for up to 205 days.</p></div>","PeriodicalId":72210,"journal":{"name":"Annals of 3D printed medicine","volume":"9 ","pages":"Article 100091"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43405153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jaime Oraa , Nicolás Fiz , Sergio González , Maider Beitia , Xabier Sánchez , Diego Delgado , Mikel Sánchez
{"title":"Derotation tibial osteotomy with custom cutting guides and custom osteosynthesis plate printed with 3D technology: Case and technical note","authors":"Jaime Oraa , Nicolás Fiz , Sergio González , Maider Beitia , Xabier Sánchez , Diego Delgado , Mikel Sánchez","doi":"10.1016/j.stlm.2022.100093","DOIUrl":"10.1016/j.stlm.2022.100093","url":null,"abstract":"<div><p>In recent years there has been a significant increase in the use of 3D technology in orthopaedic surgery. Consequently, innovative techniques in the use of 3D printed guides for different types of surgical interventions have been developed. However, the design and 3D printing of osteosynthesis implants customized to the patient's pathology is scarcer. This work presents the technical note and application in a clinical case on the design of a customised cutting guide as well as custom-made titanium osteosynthesis plate. Osteosynthesis cutting guides and plate were designed for a patient with functional ankle limitation and bone deformity due to a previous surgery in which he underwent intramedullary nailing. For this purpose, a virtual surgery was performed in which all the osteosynthesis material customized for the patient was designed. Subsequently, the 3D printing was performed, obtaining the cutting guides and the osteosynthesis plate that adapted and fixed precisely to the anatomy of the patient's bone. Currently, the patient is pain free and the bone deformity has been corrected. Custom designed and 3D printed cutting guides are a reliable method for bone deformity correction surgery, which can be complemented with a personalized osteosynthesis plate in clinical cases that require it.</p></div>","PeriodicalId":72210,"journal":{"name":"Annals of 3D printed medicine","volume":"9 ","pages":"Article 100093"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43475306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Laura K. Daly , Julian W.M. de Looze , David P. Forrestal , Michael Wagels , Ann-Louise Spurgin , Juliet D. Hoey , Michael R. Holt , Sarju Vasani , Mathilde R. Desselle
{"title":"3D printing for respiratory physiotherapy: a tale of three disciplines","authors":"Laura K. Daly , Julian W.M. de Looze , David P. Forrestal , Michael Wagels , Ann-Louise Spurgin , Juliet D. Hoey , Michael R. Holt , Sarju Vasani , Mathilde R. Desselle","doi":"10.1016/j.stlm.2022.100096","DOIUrl":"10.1016/j.stlm.2022.100096","url":null,"abstract":"<div><p>A 78-year-old patient with a laryngectomy and a background of bronchiectasis experienced frequent hospital admissions due to pulmonary exacerbations. Standard care would be to trial a positive expiratory pressure (PEP) device to assist with secretion removal, however, no adaptor could be found to contour the patient's tracheostoma. A 3D printed patient-specific PEP adaptor was created, facilitating regular secretion clearance via PEP therapy. Frequency of hospital admissions and outcomes of disease-specific questionnaires (St. George's Respiratory Questionnaire (SGRQ) and Leicester Cough Questionnaire (LCQ)) were evaluated at three and six months. After six months of device use, the patient had not experienced a pulmonary exacerbation or required an admission, whilst demonstrating clinically significant improvements in both SGRQ (58.98 vs. 66.3/100) and LCQ (11.27 vs. 13.27/21) scores. Collaboration between consumers, clinicians and engineers can support the delivery of personalised healthcare and improve quality of life for patients with pulmonary conditions.</p></div>","PeriodicalId":72210,"journal":{"name":"Annals of 3D printed medicine","volume":"9 ","pages":"Article 100096"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45191344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Opinion: Basic 3D printing design methodology for individual combinative dosage forms","authors":"Marius Tidau , Jan Henrik Finke","doi":"10.1016/j.stlm.2022.100089","DOIUrl":"10.1016/j.stlm.2022.100089","url":null,"abstract":"","PeriodicalId":72210,"journal":{"name":"Annals of 3D printed medicine","volume":"9 ","pages":"Article 100089"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44567536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jesus Uribe , Derek Harmon , Benjamin Laguna , Jesse Courtier
{"title":"Augmented-Reality Enhanced Anatomy Learning (A-REAL): Assessing the utility of 3D holographic models for anatomy education","authors":"Jesus Uribe , Derek Harmon , Benjamin Laguna , Jesse Courtier","doi":"10.1016/j.stlm.2022.100090","DOIUrl":"10.1016/j.stlm.2022.100090","url":null,"abstract":"<div><p>As anatomy lab hours have been decreased across medical school curricula, there is opportunity for Augmented Reality (AR) to emerge as an effective learning tool. In addition to live demonstrations such as those provided through the Peer Teaching Program (PTP), AR technology can provide 3-D realistic anatomic imaging that engages visuospatial skills and can be accessed remotely, The goal of this study is to provide an assessment of AR holograms as an educational intervention for anatomy learning. The study was quasi-experimental in design to determine the efficacy of AR compared to PTP. Two trials took place during regularly scheduled PTP sessions. For the AR intervention, students completed a pretest, interacted with AR holograms as either the 1st (AR1) or 2nd (AR2) educational intervention, then completed a posttest. A paired-t test was used on AR1 scores to determine AR efficacy. A one-sided MannWhitney-U test was used on post-intervention scores of AR1 vs PTP1. The AR1 group achieved a significant improvement in test scores. There was no significant difference in AR1 vs PTP1 post-intervention scores. CONCLUSION: In this pilot study, mobile-based AR was as effective as PTP in acquiring short-term learning and has the potential to be used for anatomy education to simulate hands-on laboratory time</p></div>","PeriodicalId":72210,"journal":{"name":"Annals of 3D printed medicine","volume":"9 ","pages":"Article 100090"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49131566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Progress of additive manufacturing in fabrication of foot orthoses for diabetic patients: A review","authors":"Komal Chhikara , Gurpreet Singh , Shubham Gupta , Arnab Chanda","doi":"10.1016/j.stlm.2022.100085","DOIUrl":"10.1016/j.stlm.2022.100085","url":null,"abstract":"<div><p>The diabetic prevalent population is increasing day by day, which further increases the cases of diabetic ulceration, loss of sensation in the plantar region of the foot, and amputations in severe patients. These complications can be managed up to some extent by using modified shoes, offloading orthosis, etc. In recent advances, the use of additive manufacturing (i.e., 3D printing) to fabricate orthosis for diabetic patients is pioneering. The method of 3D printing of the foot orthosis for the diabetic foot management can be used along with the traditional methods. This review article will provide extensive literature on the pathophysiology of diabetes, the related complications and management techniques, and the use of additive manufacturing in the orthosis fabrication methods and its progress.</p></div>","PeriodicalId":72210,"journal":{"name":"Annals of 3D printed medicine","volume":"8 ","pages":"Article 100085"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266696412200039X/pdfft?md5=4e03026beeb11056fe5dcbf1660c7297&pid=1-s2.0-S266696412200039X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45388556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}