Brazilian Journal of Anesthesiology
https://bjan-sba.org/article/doi/10.1016/j.bjane.2017.08.002
Brazilian Journal of Anesthesiology
Clinical Information

Radicular pain caused by Schmorl's node: a case report

Dor radicular causada por nódulo de Schmorl: relato de caso

Saeyoung Kim; Seungwon Jang

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Abstract

Abstract Schmorl's node a focal herniation of intervertebral disc through the end plate into the vertebral body. Most of the established Schmorl's nodes are quiescent. However, disc herniation into the vertebral marrow can cause low back pain by irritating a nociceptive system. Schmorl's node induced radicular pain is a very rare condition. Some cases of Schmorl's node which generated low back pain or radicular pain were treated by surgical methods. In this article, authors reported a rare case of a patient with radicular pain cause by Schmorl's node located at the inferior surface of the 5th lumbar spine. The radicular pain was alleviated by serial 5th lumbar transforaminal epidural blocks. Transforaminal epidural block is suggested as first conservative option to treat radicular pain due to herniation of intervertebral disc. Therefore, non-surgical treatment such as transforaminal epidural block can be considered a first treatment option for radicular pain caused by Schmorl's node.

Keywords

Epidural analgesia, Low back pain, Sciatica, Steroids

Resumo

Resumo O nódulo de Schmörl (NS) é a herniação focal do disco intervertebral através da placa terminal para dentro do corpo vertebral. A maioria dos nódulos de Schmörl já estabelecidos é quiescente. Porém, a hérnia de disco na medula vertebral pode causar dor lombar quando afeta um sistema nociceptivo. A dor radicular induzida por NS é uma condição muito rara. Alguns casos de NS que causaram dor lombar ou radicular foram tratados com procedimentos cirúrgicos. Neste artigo, relatamos o caso raro de um paciente com dor radicular causada por NS localizado na superfície inferior da quinta vértebra lombar (L5). A dor radicular foi atenuada mediante uma série de bloqueios peridurais transforaminais no nível L5. O bloqueio epidural transforaminal (BET) foi sugerido como primeira opção conservadora para tratar a dor radicular devido à herniação do disco intervertebral. Portanto, um tratamento não cirúrgico como o BET pode ser considerado como uma primeira opção de tratamento da dor radicular causada por NS.

Palavras-chave

Analgesia epidural, Dor lombar, Ciática, Esteroides

References

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Williams FM, Manek NJ, Sambrook PN. Schmorl's nodes: common, highly heritable, and related to lumbar disc disease. Arthritis Rheum. 2007;57:855-60.

Dar G, Masharawi Y, Peleg S. Schmorl's nodes distribution in the human spine and its possible etiology. Eur Spine J. 2010;19:670-5.

Kyere KA, Than KD, Wang AC. Schmorl's nodes. Eur Spine J. 2012;21:2115-21.

Takahashi K, Miyazaki T, Ohnari H. Schmorl's nodes and low-back pain. Analysis of magnetic resonance imaging findings in symptomatic and asymptomatic individuals. Eur Spine J. 1995;4:56-9.

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Braz J Anesthesiol

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