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Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_6 | Pages 17 - 17
1 Apr 2014
Rolton D Thakar C Popa R Nnadi C
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Aim:

The Magnetic Expansion Control Rod Device (Magec) allows controlled distraction of the immature spine for the treatment of early onset scoliosis. There disparity between the reported distraction on the external adjustment device (EAD) and true distraction achieved has not been commented on to date. This study aims to determine the disparity between ‘true’ (T) and ‘apparent’ (A) distraction. Our secondary aim was to assess truncal growth and development.

Methods:

Thirteen patients underwent an average of 4.4 (3–6) three monthly distractions. The amount of true distraction was determined by measuring the expansion gap on radiographs using the width of the rod as a conversion factor to allow for magnification. The total distraction to date was compared to the amount reported on the EAD. Sitting and standing heights were recorded at each distraction.