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Scoliosis in spinal muscular atrophy: is the preoperative magnetic resonance imaging necessary?

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Abstract

Purpose

To determine the prevalence of intraspinal alterations in scoliosis due to Spinal Muscular Atrophy (SMA).

Methods

Cross-sectional, observational, descriptive study. Fifty-six patients with SMA diagnosis required surgical treatment due to scoliosis. Inclusion criteria: scoliosis/kyphoscoliosis > 50 degrees in the coronal plane, clinical characteristics of Spinal Muscular Atrophy, accurate diagnosis by means of molecular or genetic study. Prior to the spinal surgery, and to find related intraspinal alterations, MRI of the spine and posterior cranial fossa was performed.

Results

Forty females, 16 males, mean age 11 years (range 6–14 years). 94% of the patients had Spinal Muscular Atrophy type 2. The mean angle value was 81 degrees (range 53–122 degrees) in the coronal plane and 62 degrees (range 35–80 degrees) in the sagittal plane. The prevalence of intraspinal alterations was 1.78%. One patient with cervical hydromyelia and no neurological surgical procedure prior to the spinal deformity surgery was reported.

Conclusions

In the context of preoperative planning and strategy of patients with scoliosis due to Spinal Muscular Atrophy, MRI may have not to be requested.

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Funding

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Authors and Affiliations

  1. Hospital de Pediatria Prof Dr Juan P Garrahan., Buenos Aires, Argentina

    Nestor Ricardo Davies, Eduardo Galaretto, Lucas Piantoni, Rodrigo Germán Remondino, Ida Alejandra Francheri Wilson, Ernesto Salomón Bersusky, Carlos Alberto Tello & Mariano Augusto Noel

  2. Servicio de Neurología, Hospital de Pediatría Prof. Dr. Juan P. Garrahan., Combate de los Pozos 1881, C1245AAM, Ciudad Autónoma de Buenos Aires, Argentina

    María Soledad Monges

  3. Servicio de Ortopedia y Traumatología, Hospital Interzonal General de Agudos Dr José Penna., Lainez 2401. C.P 8000, Bahía Blanca, Buenos Aires, Argentina

    Sofía Frank

Authors
  1. Nestor Ricardo Davies
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  2. Eduardo Galaretto
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  3. Lucas Piantoni
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  4. Rodrigo Germán Remondino
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  5. Ida Alejandra Francheri Wilson
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  6. María Soledad Monges
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  7. Sofía Frank
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  8. Ernesto Salomón Bersusky
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  9. Carlos Alberto Tello
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  10. Mariano Augusto Noel
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Corresponding author

Correspondence to Nestor Ricardo Davies.

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Conflict of interest

The authors declare that they have not competing interest. No conflict of interest or funding received during the conduct of this study.

Ethical approval and informed consent

The study was approved by the hospital Institutional Review Board (IRB), because of the retrospective observational nature of the study IRB waived the informed consent.

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Davies, N.R., Galaretto, E., Piantoni, L. et al. Scoliosis in spinal muscular atrophy: is the preoperative magnetic resonance imaging necessary?. Spine Deform 8, 1089–1091 (2020). https://doi.org/10.1007/s43390-020-00134-0

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  • DOI: https://doi.org/10.1007/s43390-020-00134-0

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