Abstract
Although many growth friendly techniques are effective in correcting the deformity in early-onset scoliosis (EOS), they need repeated instrument-lengthening operations. The scholars in recent years are looking for a new device, which has two kinds of modulating effects: either to modify the vertebral growth asymmetrically or to modify the forces acting on the spinal column. For this purpose, plate-rod system for scoliosis (PRSS) was developed in PUMC Hospital in 1998.
PRSS due to its characteristics of elasticity and curve structure and no fixation at the middle and bottom part of the instrumentation, which makes PRSS rods able to migrate upward and downward, there is no tether fixation on the concave side of the scoliotic curvature. This allows the longitudinal growth of the instrumented spine and avoids consecutive lengthening procedures. When PRSS is applied, the asymmetrical stress is produced: tensile stress is on the concave side continuously by the lateral sidewise push over the convex side, while a compression is produced on the convex side, the subsequently asymmetrical growth over both sides of the vertebrae occurs. Several experiment studies have confirmed PRSS with this modulating function. Our clinical outcome showed that PRSS has a significant efficiency to lower the risk of scoliotic curve progression; spinal movement was preserved after removing PRSS.
The PRSS, which dispenses with spinal fusion and allows extension as the children grow, is able to provide and maintain desirable correction of scoliosis in the later growing years due to its modulating efficiency. This new device is an effective instrumentation for correcting scoliosis in growing children, especially for EOS. In order to assess the real merit of this technique, it is necessary to collect information over a longer follow-up period until maturity.
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Ye, Q., Kuang, Z., Wang, G., Lin, J., Zhang, X., Du, M. (2016). Plate-Rod System in the Management for Progressive Scoliosis in Growing Children. In: Akbarnia, B., Yazici, M., Thompson, G. (eds) The Growing Spine. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-48284-1_49
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DOI: https://doi.org/10.1007/978-3-662-48284-1_49
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