SPINE An International Journal for the study of the spine, Publish Ahead of Print DOI: 10.1097/BRS.0000000000003215 Spinal lengthening with Magnetically Controlled Growing Rods. Data from the largest series of explanted devices Paul R P Rushton, FRCS (Tr & Ortho) 1 , Simon L Smith, PhD 2 , G Kandemir, MSc 2 , Liam Forbes 2 , David Fender, FRCS (Tr & Ortho) 1 , Andrew J Bowey, FRCS (Tr & Ortho) 1 , Michael J Gibson, FRCS (Orth) 3 , Thomas J Joyce, PhD 2 1 . Great North Children’s Hospital, Royal Victoria Infirmary, Newcastle upon Tyne, UK 2 . School of Mechanical and Systems Engineering, Newcastle University, Newcastle upon Tyne, UK 3 . Consultant Orthopaedic Spinal Surgeon (Retired) Correspondence and re-prints: Mr Paul R P Rushton Great North Children’s Hospital Royal Victoria Infirmary, Newcastle upon Tyne, UK Tel: +44 191 233 6161 Fax; +44191 2826028 Email: paulrushton@doctors.org.uk The device(s)/drug(s) is/are FDA-approved or approved by corresponding national agency for this indication. No funds were received in support of this work. No relevant financial activities outside the submitted work. Copyright © 2019 Wolters Kluwer Health, Inc. Unauthorized reproduction of this article is prohibited.