Evidence map›Paper›PMID 41559492›Full record

ArticleSpine deformity2026

Indications for magnetically controlled growing rods have evolved over time.

Katherine D Sborov, Paal K Nilssen, Lindsay M Andras, Michael J Heffernan, David L Skaggs, John T Smith, Paul D Sponseller, John B Emans, Peter F Sturm, Francisco Javier Sánchez Perez Grueso and 2 more

Abstract readMulticenter Study
PubMed Full text at PMC Publisher
In one paragraph

Article in Spine deformity, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Katherine D SborovDepartment of Orthopaedic Surgery, Cedars-Sinai Medical Center, 444 S San Vicente Blvd #901, Los Angeles, CA, 90048, USA.ORCID http://orcid.org/0000-0002-6669-4514
Paal K NilssenDepartment of Orthopaedic Surgery, Cedars-Sinai Medical Center, 444 S San Vicente Blvd #901, Los Angeles, CA, 90048, USA.ORCID http://orcid.org/0000-0001-8041-5860
Lindsay M AndrasJackie and Gene Autry Orthopaedic Center, Children's Hospital Los Angeles, 4650 Sunset Blvd,Mailstop #69, Los Angeles, CA, 90027, USA.ORCID http://orcid.org/0000-0002-3390-7878
Michael J HeffernanJackie and Gene Autry Orthopaedic Center, Children's Hospital Los Angeles, 4650 Sunset Blvd,Mailstop #69, Los Angeles, CA, 90027, USA.ORCID http://orcid.org/0000-0002-0632-3367
David L SkaggsDepartment of Orthopaedic Surgery, Cedars-Sinai Medical Center, 444 S San Vicente Blvd #901, Los Angeles, CA, 90048, USA.ORCID http://orcid.org/0000-0001-6137-5576
John T SmithDepartment of Orthopaedics, University of Utah, Salt Lake City, UT, 84113, USA.
Paul D SponsellerDivision of Pediatric Orthopaedics, Johns Hopkins University, Baltimore, MD, 21287, USA.ORCID http://orcid.org/0000-0003-2934-6374
John B EmansDepartment of Orthopedic Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA.ORCID http://orcid.org/0000-0003-2449-8758
Peter F SturmDepartment of Orthopedic Surgery, Cincinnati Children's Hospital, Cincinnati, OH, 45229, USA.
Francisco Javier Sánchez Perez GruesoSpine Unit, Department of Orthopedic Surgery, Hospital Universitario La Paz, 28046, Madrid, Spain.
Kenneth D IllingworthDepartment of Orthopaedic Surgery, Cedars-Sinai Medical Center, 444 S San Vicente Blvd #901, Los Angeles, CA, 90048, USA. Kenneth.Illingworth@cshs.org.ORCID http://orcid.org/0000-0001-7088-5906
Pediatric Spine Study Group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study is to determine the trends in use of magnetically controlled growing rods (MCGRs) over time for the treatment of scoliosis.

methodsAll patients treated with MCGRs were identified through a multi-center pediatric spine database from 2014 to 2021. MCGR use over time was analyzed with respect to individual variables within the dataset including demographics, etiology, primary vs conversion surgeries, and major curve magnitude.

resultsA total of 1,404 patients treated with MCGRs were identified. MCGR usage grew quickly until 2017 and then steadily declined through 2021. There was minimal variation over time with respect to patients' age and weight. MCGR as the index implant as opposed to revision surgery increased from 67% in 2014 to 99% in 2021. Initially, MCGR utilization was consistent across scoliosis etiologies; however, over time, it grew among neuromuscular patients while decreasing among other etiologies. MCGR use decreased over time for curves with magnitude < 60 degrees, with a corresponding rise in curves > 80 degrees.

conclusionUse of MCGRs expanded quickly after initial FDA approval in 2014 with broad indications. Over time, the indications for use of MCGRs have steadily evolved. In recent years, a higher proportion of them are used in neuromuscular scoliosis and larger curves in contrast to declining use in smaller curves. LEVEL OF EVIDENCE: III.

Indexed as

Orthopedic ProceduresScoliosisAdolescentChildFemaleHumansMaleEarly-onset scoliosisIndicationsMagnetically controlled growing rodsMCGRScoliosis

Identifiers

PMID41559492
PMCPMC13323332

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.