Dataset Information

Magnetic Controlled Growth Rods in the Treatment of Scoliosis: Safety, Efficacy and Patient Selection.

ABSTRACT: Early-onset scoliosis is defined as a spinal curvature greater than 10° in children prior to 10 years of age. Untreated EOS may lead to progressively severe spinal deformity, impaired pulmonary development, restrictive lung disease, and both increased morbidity and mortality. Limitations of established conservative treatments include inability to correct severe deformity, as well as challenges with compliance when casting and bracing is applied. In addition, surgical treatment in the form of traditional growing rods requires regular surgical lengthenings and is associated with complications inherent with repeated invasive procedures and exposure to general anesthesia. MAGEC is an evolving magnetically controlled growing rod system for the treatment of EOS. After initial implantation, lengthening is achieved non-invasively by using magnetic external remote control. MAGEC offers the potential to control moderate and severe EOS, while avoiding repeated surgical procedures and associated complications. In this review, we examine the results from clinical, radiological and explant studies following the use of MAGEC, in the context of other established and emerging treatments for EOS.

SUBMITTER: Tsirikos AI

PROVIDER: S-EPMC7085947 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Magnetic Controlled Growth Rods in the Treatment of Scoliosis: Safety, Efficacy and Patient Selection.

Tsirikos Athanasios I AI Roberts Simon B SB

Medical devices (Auckland, N.Z.) 20200317

Early-onset scoliosis is defined as a spinal curvature greater than 10° in children prior to 10 years of age. Untreated EOS may lead to progressively severe spinal deformity, impaired pulmonary development, restrictive lung disease, and both increased morbidity and mortality. Limitations of established conservative treatments include inability to correct severe deformity, as well as challenges with compliance when casting and bracing is applied. In addition, surgical treatment in the form of tra ...[more]

PMID: 32256128

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Project description:Magnetically controlled growing rods have been used to treat early-onset scoliosis for the last 9 years; however, few studies have been published, with only short-term follow-up. The aim of the present study is to systematically review the outcomes of magnetically controlled growing rods in the treatment of early-onset scoliosis with a minimum of 2-year follow-up. Studies were included if patients with early-onset scoliosis (scoliosis diagnosed before 10 years of age) underwent implantation of magnetically controlled growing rods with a minimum of 2-year follow-up. The literature review and data extraction followed the established preferred reporting items for systematic review and meta-analysis guidelines. Data of distraction frequency, number of distractions, distracted length, Cobb angle, kyphosis, T1-T12 length, and T1-S1 length preoperatively, postoperatively, and at final follow-up were collected. Data regarding complications and unplanned reoperations were also extracted. The mean values of these parameters were calculated, or pooled meta-analysis was performed if available. Ten articles were included in this systematic review, with a total of 116 patients and a follow-up period between 23 and 61 months. The mean preoperative Cobb angle and kyphosis angle were 60.1° and 38.0°, respectively, and improved to 35.4° and 26.1° postoperatively. At final follow-up, the Cobb and kyphosis angles were maintained at 36.9° and 36.0°, respectively. The average preoperative T1-T12 and T1-S1 lengths were 180.6 mm and 293.6 mm, respectively, and increased to 198.3 mm and 320.3 mm postoperatively. T1-T12 and T1-S1 lengths were 212.3 mm and 339.3 mm at final follow-up, respectively. The overall rate of patients with complications was 48% (95% confidence interval [CI], 0.38-0.58) and unplanned reoperation 44% (95% CI, 0.33-0.55) after sensitivity analysis. The current evidence from different countries with a minimum of a 2-year follow-up suggests that magnetically controlled growing rods are an effective technique to treat pediatric scoliosis and promote spine growth. However, nearly half of patients still developed complications or required unplanned reoperations.

Project description:STUDY DESIGN: Systematic review. OBJECTIVES: (1) Does brace treatment compared with observation of curves lead to lower rates of surgery and failure for patients with idiopathic scoliosis? (2) Does brace treatment compared with observation of curves lead to better quality of life outcomes for patients with idiopathic scoliosis? (3) Does brace treatment compared with observation of curves lead to improved curve angle for patients with idiopathic scoliosis? METHODS: A systematic review of the English-language literature was undertaken for articles published between 1970 and December 2010. Electronic databases and reference lists of key articles were searched to identify studies comparing brace treatment with observation of curves in patients with idiopathic scoliosis. Two independent reviewers assessed the strength of evidence using the GRADE criteria assessing quality, quantity, and consistency of results. Disagreements were resolved by consensus. RESULTS: We identified eight studies meeting our inclusion criteria. The pooled studies comparing surgical rates between observation and brace treatment showed no statistical significance (P = .65). One study showed a statistically significant difference in failure rate between observation (45%) and brace (15%) treatment (P < .001). Findings with respect to posttreatment quality of life at 2 years were inconsistent. Two studies favored the brace group, and one the observation group using the SRS-22 and Quality of Life Profile for Spine Deformities (QLPSD) measures. Two of three studies reporting pretreatment and posttreatment curve angles demonstrated a treatment effect favoring bracing; however, statistical significance for these treatment effects could not be calculated. One study described a treatment effect favoring observation but the differences were not statistically significant (P = .26). CONCLUSION: This systematic review identified and summarized only the highest level of evidence by limiting to comparison studies. Case-series were not included. This allowed for comparisons among the same patient populations. Findings with respect to surgical rates, quality of life, and change in curve angle demonstrate either no significant differences or inconsistent findings favoring one treatment or the other. If bracing does not cause a positive treatment effect, then its rejection will lead to significant savings for healthcare providers and purchasers. Given the very low to low level of evidence and inconsistent findings, a randomized trial is necessary to determine if bracing should be recommended.

Dataset Information

Magnetic Controlled Growth Rods in the Treatment of Scoliosis: Safety, Efficacy and Patient Selection.

Publications

Magnetic Controlled Growth Rods in the Treatment of Scoliosis: Safety, Efficacy and Patient Selection.

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