A Minimum of Two Years Results of Magnetically Controlled Growing Rods for Early Onset Scoliosis
Received Date: Dec 04, 2017 / Accepted Date: Dec 12, 2017 / Published Date: Dec 16, 2017
Objectives: To determine mid-term results and complications of a single center on magnetically controlled growing rod (MCGR) technique in Early Onset Scoliosis (EOS). Recently a number of preliminary reports about safety and effectiveness of MCGR have been published. We present a minimum of two years follow up of the MCGR treatment. All patients were treated in one center with the same protocol.
Methods: 22 patients with EOS of different etiologies underwent primary surgical treatment with MCGR in double rod technique. There were 15 female and 7 male patients. Average age at surgery was 8.8 (range 4.6-14.3). Mean follow-up was 31 (24-46) months. Cobb angle changes, T1-T12 and T1-S1 length were calculated. Results were analyzed to measure correction of spinal deformity and gain in spinal length.
Results: The mean preoperative curve measured 61° (40-96) and improved to 28° (11-53) (p<0.001) after surgery. At follow-up the Cobb angle was further reduced to 26° (11-64) (p=0.54). The T1-T12- as well as the T1-S1- length increased significantly (p<0.001). The average preoperative thoracic kyphosis decreased from 44° (-32-86) to 28° (9-50) after surgery, respectively to 35° (8-62) at time of FU. Four patients developed a junctional kyphosis. Three of them had to be revised. One patient developed a lumbar “adding on”, one patient a deep wound infection and in another patient a screw pullout occurred that all required revision.
Conclusion: The study supports that the MCGR is an efficient and safe technique to treat EOS. Morbidity and complications are less than treatment with conventional GR´s. After 2 years transcutaneous lengthening is still possible without loss of correction and autofusion has not yet been detected.
Keywords: Scoliosis; Non-fusion techniques; MCGR; Early onset scoliosis
Citation: Burstein J, Rupprecht M, Kunkel P, Spiro AS, Hagemann C, et al. (2017) A Minimum of Two Years Results of Magnetically Controlled Growing Rods for Early Onset Scoliosis. J Spine 6: 401. Doi: 10.4172/2165-7939.1000401
Copyright: © 2017 Burstein J, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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