Improvement of Pulmonary Function in Children With Early-Onset Scoliosis Using Magnetic Growth Rods

Abstract

4.

Actuator pin fracture in magnetically controlled growing rods: two cases

“…In a series of 140 patients, with a mean follow-up of 5 years, Bess et al reported that the risk of complications increased by 24% for each additional surgical procedure performed [16]. The MCGR technology was developed to overcome the disadvantages of previous growing rod systems [7][8][9][10][11].…”

“…Each actuator holds a small cylindrical magnet, which is rotated when stimulated by an external remote controller (ERC) with subsequent MCGR lengthening. As a result MCGRs lengthening is performed noninvasively in the outpatient clinic without the necessity for general anesthesia, invasive surgery, or their associated risks [7][8][9][10][11]. Distraction of MCGRs can also be performed more regularly, which may mimic normal spine growth more accurately than earlier growing rod systems [7,8].…”

“…Conventional growing rods require invasive surgical distraction under general anesthesia, with consequent impact on patients and families. Magnetically controlled growing rods (MCGRs) have been developed to address these shortcomings, which can be lengthened non-invasively in the outpatient clinic [7][8][9][10][11].…”

Analysing a mechanism of failure in retrieved magnetically controlled spinal rods

“…MCGRs are gaining in popularity among patients and surgeons as they are the least invasive technique for patients with a high degree scoliosis [6][7][8][9][10][11], both for primary operations and conversion cases from the traditional growing rods [12]. Once implanted (see Fig.…”

Fusionless surgery in early-onset scoliosis

“…Moreover, in 15 patients aged 2-10 years managed by VEPTR, they found no correlation between improvement in Cobb angle and evolution of FVC at 13 months' follow-up. Yoon et al, in 6 children with neuromuscular scoliosis aged 5-10 years, reported the effect of spinal distraction by MAGEC ® magnetic rods on respiratory function [35]; at 2 years' follow-up, Cobb angle showed 34 • improvement, FVC 14% and MEVS 17% over initial values. These results may have been due to early surgery and iterative non-invasive lengthening, limiting fibrous parietal retraction.…”