The magnetic field strength and the force distance dependency of the magnetically controlled growing rods used for early onset scoliosis.

Magnetically controlled growing rods (MCGR's) have revolutionized the treatment of early-onset scoliosis (EOS) because painless lengthenings can be done in the outpatient clinic without anesthesia. Untreated EOS leads to respiratory insufficiency and reduced life expectancy. However, MCGR's have inherent complications like non-functioning of the lengthening mechanism.

Magnetically controlled growing rods in early-onset scoliosis.

Introduction: Early-onset scoliosis (EOS) may result in disability and a reduced life expectancy. The aim of this study was to report the results of primary magnetically controlled growing rods (MCGR) in a consecutive group of patients with EOS diagnosed and operated at Aalborg University Hospital, Denmark, from 2009 and onwards and with at least two years of follow-up.

Methods: Data were extracted from the electronic patient records and the Picture Archiving and Communication System.

Inter- and intrarater reliability of measuring lengthening of magnetically controlled growing rods on digital radiographs.

Purpose: The aim of this study was to determine inter- and intraobserver reliability of delta rod extension, and total rod length measured on digital x-rays in patients with early onset scoliosis (EOS) treated with magnetically controlled growing rods (MCGR). For the last decade, patients with EOS have been treated with MCGR. Replacement of MCGR relies heavily on the measurement done at every lengthening session.