The use of magnetically-controlled growing rods to treat children with early-onset scoliosis

Thompson, Wendy; Thakar, Chrishan; Rolton, Daniel; Wilson-MacDonald, James; Nnadi, Colin

doi:10.1302/0301-620x.98b9.37545

Cited by 63 publications

(31 citation statements)

References 46 publications

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“…Studies reporting longer duration of follow-up and more detailed radiological assessment following use of MAGEC have subsequently been reported. Thompson et al 33 reported the outcomes of 19 patients treated by MAGEC with mean 22.4 months' follow-up. They found that MAGEC was able to improve the coronal plane deformity and maintain this correction throughout follow-up (from mean 62°to 45.1°).…”

Section: Magec In Cohort Studies: Clinical and Radiological Resultsmentioning

confidence: 99%

<p>Magnetic Controlled Growth Rods in the Treatment of Scoliosis: Safety, Efficacy and Patient Selection</p>

Roberts

2020

MDER

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Early-onset scoliosis is defined as a spinal curvature greater than 10°in children prior to 10 years of age. Untreated EOS may lead to progressively severe spinal deformity, impaired pulmonary development, restrictive lung disease, and both increased morbidity and mortality. Limitations of established conservative treatments include inability to correct severe deformity, as well as challenges with compliance when casting and bracing is applied. In addition, surgical treatment in the form of traditional growing rods requires regular surgical lengthenings and is associated with complications inherent with repeated invasive procedures and exposure to general anesthesia. MAGEC is an evolving magnetically controlled growing rod system for the treatment of EOS. After initial implantation, lengthening is achieved non-invasively by using magnetic external remote control. MAGEC offers the potential to control moderate and severe EOS, while avoiding repeated surgical procedures and associated complications. In this review, we examine the results from clinical, radiological and explant studies following the use of MAGEC, in the context of other established and emerging treatments for EOS.

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Section: Magec In Cohort Studies: Clinical and Radiological Resultsmentioning

confidence: 99%

<p>Magnetic Controlled Growth Rods in the Treatment of Scoliosis: Safety, Efficacy and Patient Selection</p>

Roberts

2020

MDER

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“…Early results on the outcome and efficacy of MCGRs are promising. 6,8,15,18,19 The use of an MCGR in a patient with preexisting phrenic stimulators has not been studied. Our patient received primarily mechanical ventilation and would not have a significant functional decline if the DP were compromised by the MCGR.…”

Section: Discussionmentioning

confidence: 99%

Insertion of magnetically controlled growing rods in a patient with a diaphragmatic pacemaker: case report

Vivas

Hwang

Pahys

2017

Neurosurgical Focus

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Phrenic stimulators offer an alternative to standard mechanical ventilation as well as the potential for ventilator independence in select patients with chronic respiratory failure. Young patients (< 10 years old) with high cervical spinal cord injuries often develop paralytic scoliosis due to loss of muscle tone caudal to their spinal cord lesion. Growing rod systems allow for stabilization of spinal deformity while permitting continued growth of the spine and thoracic cavity. Magnetically controlled growing rods (MCGRs) offer the advantage of noninvasive expansion, as opposed to the operative expansion required in traditional growing rod systems. To the authors’ knowledge, this is the first reported case of MCGRs in a patient with a diaphragmatic pacemaker (DP). A 7-year-old boy with ventilator dependence after a high cervical spinal cord injury presented to the authors’ institution with paralytic scoliosis that progressed to > 120°. The patient had previously undergone insertion of phrenic nerve stimulators for diaphragmatic pacing. The decision was made to insert MCGRs bilaterally to stabilize his deformity, because the planned lengthening surgeries that are necessary with traditional growing rods would be poorly tolerated in this patient. The patient’s surgery and postoperative course were uneventful. The DP remained functional after insertion and lengthening of the MCGRs by using the external magnet. The DP had no effect on the expansion capability of the MCGRs. In conclusion, the MCGRs appear to be compatible with the DP. Further studies are needed to validate the long-term safety and compatibility of these 2 devices.

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“…До-и послеоперационные рентгенограммы позвоночника 8-летней пациентки с идиопатическим сколиозом, срок наблюдения -23 мес. [38] Hirurgia Pozvonochnika (spine surgery) 2020;17(1):25-41 ХИРУРГИЯ ПОЗВОНОЧНИКА 2020. Т.…”

Section: рисunclassified

“…Сколько-нибудь убедительных обоснований того или иного типа протокола найти в этих работах не удается. Только несколько авторов [31,35,38] подчеркнули, что избранный ими протокол (1-1,5 мм удлинения в месяц со средним интервалом между удлинениями 78 дней) основан на работе Canavese и DiMeglio [62], где представлены данные о нормальном росте тел позвонков в разные периоды жизни ребенка. Эта техника, получившая название Tail gaiting, предусматривает удлинение на 2,2 см в год у детей в возрасте до 5 лет, 1,1 смв возрасте 5-10 лет и 1,8 см -старше 10 лет.…”

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Magnetically controlled growing rods in early onset scoliosis surgery: a review of Englishlanguage literature

Михайловский

Альшевская

2020

Hir. pozvonoč.

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The objective of the review is to provide multifaceted information on the treatment of young children with severe onset scoliosis using magnetically-controlled growing rods (MCGR). This promising though controversial method is not yet well known in our country. The review presents the history of the development of the method, surgical technique, the frequency of etiological forms of spinal deformities, and describes in detail the results of scoliosis correction including the most severe cases. Quantitative and qualitative data describe complications that arise during the treatment including those characteristic only for this method (for example, slippage phenomena). The problem of repeated operations is separately discussed, and the capabilities of MCGR and other techniques based on the principle of distraction are compared. The review presents features of the use of MCGR in adult patients, the dynamics of the primary curve in the postoperative period (does the Sankar’s law work?), the possibilities of ultrasound when monitoring the effectiveness of magnetic rods, the use of MRI simultaneously with MCGR, and the comparative cost of the method. Particular attention is paid to the problem of a uniform protocol of staged extension of rods. It seems that the initial enthusiasm has somewhat decreased. It is commonly agreed that new research is needed.

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The use of magnetically-controlled growing rods to treat children with early-onset scoliosis

Cited by 63 publications

References 46 publications

<p>Magnetic Controlled Growth Rods in the Treatment of Scoliosis: Safety, Efficacy and Patient Selection</p>

<p>Magnetic Controlled Growth Rods in the Treatment of Scoliosis: Safety, Efficacy and Patient Selection</p>

Insertion of magnetically controlled growing rods in a patient with a diaphragmatic pacemaker: case report

Magnetically controlled growing rods in early onset scoliosis surgery: a review of Englishlanguage literature

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