Producing 3D printed hand models for anatomy education using cadaveric dissection: a feasibility study

Introduction The mainstay of treatment for venous ulceration remains compression therapy. Velcro Wrap devices are being increasingly used in these patients despite limited evidence. This feasibility study aimed to compare standard bandaging to the JuxtaCures™ Velcro wrap device. Methods A single centre, unblinded RCT compared participants with venous ulceration randomised to either the JuxtaCures™ device or short stretch bandaging. Participants were followed up for 26 weeks. Results 160 participants were screened with 40 randomised. 3 participants in bandaging and 1 in JuxtaCures™ didn’t complete the study. 60% in JuxtaCures™ healed v 55% in bandaging despite larger ulcers in the JuxtaCures™ arm (9.33 cm2 v 6.97 cm2). There was no significant difference in time to healing (12.17 v 13.64 weeks). JuxtaCures™ showed improved ulcer reduction for those that didn’t heal (14.91–5.00 cm2 v 14.20–8.62 cm2; P = 0.06). JuxtaCures™ had more consistent sub-bandage pressure dropping from 39–36 mmHg versus 41–25 mmHg in bandaging between application and removal (P < 0.001). Quality of life (EQ5D) was improved in JuxtaCures at 3 months (mean difference 0.14, p = 0.04), but not at 1 and 6 months, or in disease specific quality of life. Cost was lower in JuxtaCures™ £842.47 v £1064.68. Duration of appointment was significantly shorter in JuxtaCures™ (41 minutes v 53 minutes; P = 0.003). Conclusion This study has shown the feasibility and necessity of running a multicentre trial to evaluate the use of Velcro wrap devices for venous ulceration. It highlights the potential benefits of more consistent pressure, increased self-care, and potential with regards to ulcer healing, cost, nursing resource and quality of life.

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Very affordable post mortem CT angiography kit: Feasibility study using immersion pump and 3D printed parts

Journal of Forensic Radiology and Imaging ◽

10.1016/j.jofri.2018.12.002 ◽

2019 ◽

Vol 16 ◽

pp. 11-18 ◽

Cited By ~ 1

Author(s):

Wolf Schweitzer ◽

Markus Enders ◽

Michael Thali

Keyword(s):

Ct Angiography ◽

Feasibility Study ◽

Post Mortem ◽

3D Printed

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Novel rechargeable 3D-Microbatteries on 3D-printed-polymer substrates: Feasibility study

Electrochimica Acta ◽

10.1016/j.electacta.2018.01.197 ◽

2018 ◽

Vol 265 ◽

pp. 690-701 ◽

Cited By ~ 19

Author(s):

E. Cohen ◽

S. Menkin ◽

M. Lifshits ◽

Y. Kamir ◽

A. Gladkich ◽

...

Keyword(s):

Feasibility Study ◽

Polymer Substrates ◽

3D Printed

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Is cadaveric dissection vital in anatomy education? Perceptions of 1stand 2ndyear medical students

Journal of Experimental and Clinical Anatomy ◽

10.4103/1596-2393.190822 ◽

2016 ◽

Vol 15 (1) ◽

pp. 14 ◽

Cited By ~ 2

Author(s):

Philip Mwachaka ◽

Hassan Saidi ◽

Pamela Mandela

Keyword(s):

Medical Students ◽

Anatomy Education ◽

Cadaveric Dissection

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Three-dimensional digital technologies in anatomy education: Better than traditional methods, but are they better than cadaveric dissection?

Clinical Anatomy ◽

10.1002/ca.23591 ◽

2020 ◽

Cited By ~ 2

Author(s):

Dimitrios Chytas ◽

Maria Piagkou ◽

Marios Salmas ◽

Elizabeth O. Johnson

Keyword(s):

Three Dimensional ◽

Digital Technologies ◽

Anatomy Education ◽

Traditional Methods ◽

Cadaveric Dissection ◽

Better Than

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3D-Printed specimens as a valuable tool in anatomy education: A pilot study

Annals of Anatomy - Anatomischer Anzeiger ◽

10.1016/j.aanat.2018.05.006 ◽

2018 ◽

Vol 219 ◽

pp. 57-64 ◽

Cited By ~ 26

Author(s):

Monique Garas ◽

Mauro Vaccarezza ◽

George Newland ◽

Kylie McVay-Doornbusch ◽

Jamila Hasani

Keyword(s):

Pilot Study ◽

Anatomy Education ◽

3D Printed

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Fresh and Hardened Properties of Extrusion-Based 3D-Printed Cementitious Materials: A Review

Sustainability ◽

10.3390/su12145628 ◽

2020 ◽

Vol 12 (14) ◽

pp. 5628

Author(s):

Zhanzhao Li ◽

Maryam Hojati ◽

Zhengyu Wu ◽

Jonathon Piasente ◽

Negar Ashrafi ◽

...

Keyword(s):

3D Printing ◽

Experimental Testing ◽

Design Procedure ◽

Cementitious Materials ◽

Material Point ◽

Point Of View ◽

Open Time ◽

Potential Benefits ◽

3D Printed ◽

Hardened Properties

3D-printing of cementitious materials is an innovative construction approach with which building elements can be constructed without the use of formwork. Despite potential benefits in the construction industry, it introduces various engineering challenges from the material point of view. This paper reviews the properties of extrusion-based 3D-printed cementitious materials in both fresh and hardened states. Four main properties of fresh-state printing materials are addressed: flowability, extrudability, buildability, and open time, along with hardened properties, including density, compressive strength, flexural strength, tensile bond strength, shrinkage, and cracking. Experimental testing and effective factors of each property are covered, and a mix design procedure is proposed. The main objective of this paper is to provide an overview of the recent development in 3D-printing of cementitious materials and to identify the research gaps that need further investigation.

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