A statistic approach to electronic moulding versus traditional plaster moulding Jean Claude de Mauroy, Frédéric Barral, Cyril Lecante.

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Presentation transcript:

A statistic approach to electronic moulding versus traditional plaster moulding Jean Claude de Mauroy, Frédéric Barral, Cyril Lecante

Background  Electronic moulding tends to gradually replace the plaster moulding. Is it as effective?  There is no study on the results obtained by this process for the scoliosis.  In the department of orthopaedic medicine of the Clinique du Parc - Lyon, the electronic moulding replaced the traditional plastered moulding in May,  Are the radiological angular corrections better in brace?

Full 3D Electronic Moulding

automatic modification of the shape

Methodology  The angular correction of 166 plaster moulding scoliosis was compared with the correction of 117 electronic moulding scoliosis (random).  Both mouldings were made by the same physician.  The electronic moulding has been produced using the full 3D system ORTEN.  The curves have been grouped into thoracic (n=127), thoracolumbar(n=65) and lumbar(n=206).

Init Plaster cast Lumbar brace

Results The average initial angle is: 28,19 (+-9,21) for thoracic, 28,11 (+-9,34) for thoraco-lumbar and 25,86 (+-7,04) for lumbar curves. The angular reducibility is 54 % in braces for the thoracic curvatures, 69 % for the thoracolumbar curvatures and of 73 % for the lumbar curvatures, which corresponds to the usual results of the Lyon management.

Anatomo-radiological classification

In Brace angular reducibility 54 % 69 % 73 %

Comparative results N= 166 – Traditional mouldingN = 117 cad-cam moulding Thoracic before treatment28,70 ( )27,75 ( ) Thoracic in plaster cast13,33 ( )15,72 ( ) Thoracic in brace14,43 ( )13,19 ( ) Thor-lumbar before treatment28,21 ( )28,61 ( ) Thor-lumbar in plaster cast8,82 ( )9,35 ( ) Thor-lumbar in brace11,37 ( )8,88 ( ) Lumbar before treatment26,31 (+-6.86)25,31 ( ) Lumbar in plaster cast8,02 ( )8,23 ( ) Lumbar in brace8,78 ( )6,85 ( )

Electronic versus Plaster Moulding 3.63° 3.02° 2.14° 5.44° 4.75° 3.89° But nonsignificant

Conclusion  Such results are in favour of the electronic moulding which remains however delicate and require:  a precise position of the patient during the surface topography and  well trained orthotic technicians.