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KMID : 0363120230360030358
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Korean Journal of Pain
2023 Volume.36 No. 3 p.358 ~ p.368
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Association between fatty infiltration in the cervical multifidus and treatment response following cervical interlaminar epidural steroid injection
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Kwon Hyun-Jung
Kim Chan-Sik
Kim Sung-Won
Yoon Syn-Hae
Koh Jung-Ho
Kim Young-Ki
Choi Seong-Soo
Shin Jin-Woo
Kim Doo-Hwan
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Abstract
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Background : Recent attention has been directed towards fatty infiltration in the cervical extensor muscles for predicting clinical outcomes in several cervical disorders. This study aimed to investigate the potential association between fatty infiltration in the cervical multifidus and treatment response following cervical interlaminar epidural steroid injection (CIESI) in patients with cervical radicular pain.
Methods : The data of patients with cervical radicular pain who received CIESIs between March 2021 and June 2022 were reviewed. A responder was defined as a patient with a numerical rating scale decrease of ≥ 50% from the baseline to three months after the procedure. The presence of fatty infiltration in the cervical multifidus was assessed, along with patient characteristics, and cervical spine disease severity. To assess cervical sarcopenia, fatty infiltration in the bilateral multifidus muscles was evaluated at the C5?C6 level using the Goutallier classification.
Results : Among 275 included patients, 113 (41.1%) and 162 (58.9%) were classified as non-responders and responders, respectively. The age, severity of disc degeneration, and grade of cervical multifidus fatty degeneration were significantly lower in responders. Multivariate logistic regression analysis revealed that pre-procedural symptoms (radicular pain with neck pain, odd ratio [OR] = 0.527, P = 0.024) and high-grade cervical multifidus fatty degeneration (Goutallier grade 2.5?4, OR = 0.320, P = 0.005) were significantly associated with an unsuccessful response to CIESI.
Conclusions : These results suggest high-grade cervical multifidus fatty infiltration is an independent predictor of poor response to CIESI in patients with cervical radicular pain.
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KEYWORD
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Cervical Vertebrae, Injections, Epidural, Neck Pain, Paraspinal Muscles, Radiculopathy, Sarcopenia, Steroids, Treatment Outcome
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