Imperial College London
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ProfessorAlisonMcGregor

Faculty of Medicine, Department of Surgery & Cancer

Professor of Musculoskeletal Biodynamics
 
 
 
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Contact

 

+44 (0)20 7594 2972a.mcgregor

 
 
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Location

 

Room 202ASir Michael Uren HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Sanz-Pena:2021:10.3390/app11104665,
author = {Sanz-Pena, I and Arachchi, S and Halwala-Vithanage, D and Mallikarachchi, S and Kirumbara-Liyanage, J and McGregor, A and Silva, P and Newell, N},
doi = {10.3390/app11104665},
journal = {Applied Sciences},
pages = {1--13},
title = {Characterising the mould rectification process for designing scoliosis braces: towards automated digital design of 3D-printed braces},
url = {http://dx.doi.org/10.3390/app11104665},
volume = {11},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The plaster-casting method to create a scoliosis brace consists of mould generation and rectification to obtain the desired orthosis geometry. Alternative methods entail the use of 3D scanning and CAD/CAM. However, both manual and digital design entirely rely on the orthotist expertise. Characterisation of the rectification process is needed to ensure that digital designs are as efficient as plaster-cast designs. Three-dimensional scans of five patients, pre-, and post-rectification plaster moulds were obtained using a Structure Mark II scanner. Anatomical landmark positions, transverse section centroids, and 3D surface deviation analyses were performed to characterise the rectification process. The rectification process was characterised using two parameters. First, trends in the external contours of the rectified moulds were found, resulting in lateral tilt angles of 81 ± 3.8° and 83.3 ± 2.6° on the convex and concave side, respectively. Second, a rectification ratio at the iliac crest (0.23 ± 0.04 and 0.11 ± 0.02 on the convex and concave side, respectively) was devised, based on the pelvis width to estimate the volume to be removed. This study demonstrates that steps of the manual rectification process can be characterised. Results from this study can be fed into software to perform automatic digital rectification.
AU  - Sanz-Pena,I
AU  - Arachchi,S
AU  - Halwala-Vithanage,D
AU  - Mallikarachchi,S
AU  - Kirumbara-Liyanage,J
AU  - McGregor,A
AU  - Silva,P
AU  - Newell,N
DO  - 10.3390/app11104665
EP  - 13
PY  - 2021///
SN  - 2076-3417
SP  - 1
TI  - Characterising the mould rectification process for designing scoliosis braces: towards automated digital design of 3D-printed braces
T2  - Applied Sciences
UR  - http://dx.doi.org/10.3390/app11104665
UR  - https://www.mdpi.com/2076-3417/11/10/4665
UR  - http://hdl.handle.net/10044/1/88913
VL  - 11
ER  -
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