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Revista de la Asociación Argentina de Ortopedia y Traumatología
versão On-line ISSN 1852-7434
Resumo
ORELLANA, César et al. Crecimiento guiado con barras magnéticas en pacientes con escoliosis de inicio temprano. Reporte preliminar. Rev. Asoc. Argent. Ortop. Traumatol. [online]. 2020, vol.85, n.4, pp.377-386. ISSN 1852-7434. http://dx.doi.org/https://doi.org/10.15417/issn.1852-7434.2020.85.4.1060.
Introduction: Early onset scoliosis (EOS) treatment with the magnetically controlled growing rod (MCGR) system allows for the use of non-invasive outpatient distractions. The purpose of this study was to assess our first series of EOS patients treated with MCGRs. Materials and methods: We conducted a review of EOS cases treated with MCGRs between 2014 and 2018. The study population was divided into two groups: Group I, patients undergoing primary MCGR insertion; Group II, patients undergoing conversion from conventional growth system to MCGR. Results: The study population consisted of 19 patients. The average age at the time of surgery was 7 years and 4 months, with an average post-operative follow-up of 2 years and 7 months. Group I consisted of 12 patients and Group II of 7 patients. The mean preoperative scoliosis angle was 62° and immediate postoperatively was 42°. The mean preoperative kyphosis angle was 49°and immediate postoperatively was 34°. The average preoperative T1-T12 length was 160mm and immediate postoperatively was 176mm. The average preoperative T1-S1 length was 285mm and immediate postop-eratively was 317mm. There was 1 late complication, an implant protrusion with an associated infection, in a neuropathic scoliosis patient (Group II) who required implant removal. Conclusion: Our preliminary results suggest that the MCGR system is a safe and effective method. Although the short- and medium-term results are encouraging, further studies are warranted to overcome important and unknown challenges regarding the mechanical behavior of the implant in the long term.
Palavras-chave : Early onset scoliosis; magnetically controlled growing rods.