A statistic approach to electronic moulding versus traditional plaster moulding

Mauroy, JC De; Barral, F.; Lecante, Cyril

doi:10.1186/1748-7161-7-s1-o42

Cited by 2 publications

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“…The efficiency in brace correction between the traditional plaster mould and the CAD/CAM moulding is not obvious. A better angular in-brace correction was noted with CAD/CAM, but it was not statistically significant [ 14 ]. For Wong the in-brace reduction with the manual method is 0.321 versus 0.419 for the CAD/CAM method, which is non-significant [ 15 ].…”

Section: Historymentioning

confidence: 99%

Prospective study and new concepts based on scoliosis detorsion of the first 225 early in-brace radiological results with the new Lyon brace: ARTbrace

Mauroy¹,

Lecante²,

Barral³

et al. 2014

Scoliosis

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BackgroundThe symmetrical Lyon brace is a brace, usually used to maintain correction after a plaster cast reduction in the Cotrel’s EDF (Elongation-Derotation-Flexion) frame. The new Lyon brace or ARTbrace is an immediate corrective brace based on some of the principles of the plaster cast which are improved due to advances in CAD/CAM technology. The aim of this paper is to describe concepts of this new brace to be not only a replacement of the plaster cast, but also a definitive brace.MethodsInstead of a plaster cast, three segmental CAD/CAM moulds are made with the instantaneous full 3D raster stereography digitizer (Orten):In self axial elongationIn shift and lumbar lordosisIn shift and thoracic kyphosisA specific software (OrtenShape) makes up the overlay of the three moulds. Mould 1 is used for the pelvis and the shoulders mould 2 for the lumbar segment and mould 3 for the thoracic segment.The mathematical basis of the ARTbrace is the torso column which is a circled helicoid with horizontal circle generator. A torso column is reproduced in the opposite direction of the scoliosis.Like the plaster cast, the ARTbrace is worn for a “total time” of 24 hours 7 days a week without modifying the standard protocol of the Lyon brace reduction.The prospective controlled cohort observational study of the 225 first patients treated since May 2013 is reported below.ResultsThe in-brace immediate reduction is: 0.7, i.e. 40% better with the ARTbrace than with a plaster cast. The correction of flat back is 9° (from 18°.4 to 28°.5 kyphosis Cobb angle). The improved aesthetic appearance is equal for rib hump and ATR.ConclusionThis first paper is an introduction with very short results and does not prejudge the final outcome. The ARTbrace can be used not only to replace the plaster cast, but also as a definitive brace. The new segmental moulding with final detorsion is even more efficient and to this day the ARTbrace is the most effective to reduce the Cobb angle of scoliosis.Electronic supplementary materialThe online version of this article (doi:10.1186/1748-7161-9-19) contains supplementary material, which is available to authorized users.

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Section: Historymentioning

confidence: 99%

Prospective study and new concepts based on scoliosis detorsion of the first 225 early in-brace radiological results with the new Lyon brace: ARTbrace

Mauroy¹,

Lecante²,

Barral³

et al. 2014

Scoliosis

View full text Add to dashboard Cite

show abstract

“…Many previous studies support the positive results associated with the casting and Lyon braces [ 14 , 16 , 17 ] but the difficulty and cost of making the plaster cast, administrative economical questions and low compliance, can also explain the reasons which ultimately have prompted the development of new design concepts with immediate in-brace correction. It was only in 2013 that advances in computer technology with the latest generation software (OrtenShape) allowed the superposition of different CAD/CAM moulds and a segmental 3D reconstruction [ 18 , 19 ]. The aim was to use this new software to replace the plaster cast with a new Lyon brace: the ARTbrace.…”

Section: Introductionmentioning

confidence: 99%