Special Article: Update on the Magnetically Controlled Growing Rod: Tips and Pitfalls

Magnetically controlled growing rods (MCGR) have become an important treatment option in young patients with spinal deformities. This device allows for gradual lengthening on an outpatient setting with continuous neurological monitoring in an awake patient. With its growing popularity and interest,...

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Main Authors: Jason Pui Yin Cheung, Patrick Cahill, Burt Yaszay, Behrooz A Akbarnia, Kenneth MC Cheung
Format: Article
Language:English
Published: SAGE Publishing 2015-12-01
Series:Journal of Orthopaedic Surgery
Online Access:https://doi.org/10.1177/230949901502300327
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author Jason Pui Yin Cheung
Patrick Cahill
Burt Yaszay
Behrooz A Akbarnia
Kenneth MC Cheung
author_facet Jason Pui Yin Cheung
Patrick Cahill
Burt Yaszay
Behrooz A Akbarnia
Kenneth MC Cheung
author_sort Jason Pui Yin Cheung
collection DOAJ
description Magnetically controlled growing rods (MCGR) have become an important treatment option in young patients with spinal deformities. This device allows for gradual lengthening on an outpatient setting with continuous neurological monitoring in an awake patient. With its growing popularity and interest, this study reports the tips, pitfalls, and complications of the MCGR for management of scoliosis. On 3 June 2015 at the University of Hong Kong, 32 participants from 16 regions shared their experience with MCGR. Current indications for surgery include early-onset scoliosis patients. Adolescent idiopathic scoliosis and congenital scoliosis patients have less favourable outcomes. The number of instrumented levels should be minimised, as all instrumented levels must be included in the definitive fusion surgery. Rod contouring is important and owing to the straight portion of the rod housing the magnet, there is limited proximal rod portion for proper contouring, which may predispose to proximal junctional kyphosis. There is currently no consensus on the rod configuration, timing, frequency, technique, and amount of distraction. Risk factors for distraction failure include larger patients, internal magnets too close to each other, and magnets too close to the apex of the major curve. Future studies should resolve the issues regarding the technique of distraction, optimal frequency and amount of distraction per session. More comprehensive cost analyses should be performed.
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spelling doaj.art-44ce262708a5465592904f7693f0dfd62022-12-21T22:46:01ZengSAGE PublishingJournal of Orthopaedic Surgery2309-49902015-12-012310.1177/230949901502300327Special Article: Update on the Magnetically Controlled Growing Rod: Tips and PitfallsJason Pui Yin Cheung0Patrick Cahill1Burt Yaszay2Behrooz A Akbarnia3Kenneth MC Cheung4 Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong Shriners Hospitals for Children, Philadelphia, Pennsylvania, United States Pediatric Orthopedic and Scoliosis Center, San Diego, California, United States San Diego Center for Spinal Disorders, La Jolla, California, United States Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong KongMagnetically controlled growing rods (MCGR) have become an important treatment option in young patients with spinal deformities. This device allows for gradual lengthening on an outpatient setting with continuous neurological monitoring in an awake patient. With its growing popularity and interest, this study reports the tips, pitfalls, and complications of the MCGR for management of scoliosis. On 3 June 2015 at the University of Hong Kong, 32 participants from 16 regions shared their experience with MCGR. Current indications for surgery include early-onset scoliosis patients. Adolescent idiopathic scoliosis and congenital scoliosis patients have less favourable outcomes. The number of instrumented levels should be minimised, as all instrumented levels must be included in the definitive fusion surgery. Rod contouring is important and owing to the straight portion of the rod housing the magnet, there is limited proximal rod portion for proper contouring, which may predispose to proximal junctional kyphosis. There is currently no consensus on the rod configuration, timing, frequency, technique, and amount of distraction. Risk factors for distraction failure include larger patients, internal magnets too close to each other, and magnets too close to the apex of the major curve. Future studies should resolve the issues regarding the technique of distraction, optimal frequency and amount of distraction per session. More comprehensive cost analyses should be performed.https://doi.org/10.1177/230949901502300327
spellingShingle Jason Pui Yin Cheung
Patrick Cahill
Burt Yaszay
Behrooz A Akbarnia
Kenneth MC Cheung
Special Article: Update on the Magnetically Controlled Growing Rod: Tips and Pitfalls
Journal of Orthopaedic Surgery
title Special Article: Update on the Magnetically Controlled Growing Rod: Tips and Pitfalls
title_full Special Article: Update on the Magnetically Controlled Growing Rod: Tips and Pitfalls
title_fullStr Special Article: Update on the Magnetically Controlled Growing Rod: Tips and Pitfalls
title_full_unstemmed Special Article: Update on the Magnetically Controlled Growing Rod: Tips and Pitfalls
title_short Special Article: Update on the Magnetically Controlled Growing Rod: Tips and Pitfalls
title_sort special article update on the magnetically controlled growing rod tips and pitfalls
url https://doi.org/10.1177/230949901502300327
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