J Korean Orthop Assoc.  2018 Oct;53(5):443-448. 10.4055/jkoa.2018.53.5.443.

Results of Magnetically Controlled Growing Rods for Early Onset Scoliosis

• Choi S
• Kim HS
• Suk KS
• Lee HM
• Moon SH
• Yang JH
• Lee Y
• Ha JW
• He Q

• KMID: 2424104
• DOI: http://doi.org/10.4055/jkoa.2018.53.5.443

Abstract

PURPOSE
To evaluate the first results of surgical treatment using newly developed magnetically controlled growing rods (MCGR) for early onset scoliosis (EOS).
MATERIALS AND METHODS
From January 2013 to January 2017, 5 patients, who underwent surgical treatment with MCGR for EOS and were followed for more than one year, were analyzed retrospectively. The demographic and radiology data, including age at surgery, diagnosis, number of lengthening, Cobb angle, T1-S1 length, T1-T12 length, and complications, were analyzed.
RESULTS
The mean age of the patients was 6.0±2.7 years old. The subjects were 3 males and 2 females: 2 with neuromuscular scoliosis, 1 with syndromic scoliosis, 1 with idiopathic scoliosis, and 1 with congenital scoliosis. The mean number of lengthening was 9.8±2.9 times and the follow-up was 21.6±5.7 months. The Cobb angle improved from 82.0°±28.5° to 48.3°±28.8° at the last follow-up. The T1-S1 length increased from 283.1±72.7 mm to 342.6±86.3 mm at the last follow-up. The T1-T12 length increased from 163.1±50.5 mm to 202.3±65.5 mm at the last follow-up. One screw loosening complication was encountered and there were no neurological complications.
CONCLUSION
The treatment using MCGR for EOS is effective and useful.

Keyword

scoliosis; growing rod; magnetically controlled growing rods

MeSH Terms

Diagnosis
Female
Follow-Up Studies
Humans
Male
Retrospective Studies
Scoliosis*

Figure

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  Figure 1 Serial radiographs of a 3-year- and 9-month-old male patient with neurofibromatosis scoliosis who underwent corrective surgery using magnetically controlled growing rod lengthening. (A) Preoperative whole spine postero-anterior (PA) x-ray showing 108.2° Cobb angle. (B) Postoperative whole spine PA view, the curve was corrected to 60.4° Cobb angle. (C) Whole spine PA view at last follow-up 18 months after tenth lengthening procedure without anesthesia. The curve was corrected to 58.2° Cobb angle.

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