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Article

Long-Term Influence of Paraspinal Muscle Quantity in Adolescent Idiopathic Scoliosis Following Deformity Correction by Posterior Approach

1
Department of Orthopedic Surgery, Inje University Sanggye Paik Hospital, College of Medicine, Inje University, Seoul 01757, Korea
2
Department of Orthopedic Surgery, Korea University Guro Hospital, College of Medicine, Korea University, Seoul 08308, Korea
3
Department of Orthopedic Surgery, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
4
Department of Orthopedic Surgery, Chung-Ang University Hospital, College of Medicine, Chung-Ang University, Seoul 06973, Korea
*
Author to whom correspondence should be addressed.
Hong Jin Kim and Jae Hyuk Yang equally contributed to this work, and should be considered as co-first author.
Academic Editor: Theodoros B. Grivas
J. Clin. Med. 2021, 10(20), 4790; https://doi.org/10.3390/jcm10204790
Received: 3 August 2021 / Revised: 16 October 2021 / Accepted: 17 October 2021 / Published: 19 October 2021
Pedicle screw instrumentation (PSI) through posterior approach has been the mainstay of deformity correction for adolescent idiopathic scoliosis (AIS). However, changes in the quantity of paraspinal muscles after AIS surgery has remained largely unknown. The aim of this study was to investigate long-term follow-up changes in paraspinal muscle volume in AIS surgery via a posterior approach. Forty-two AIS patients who underwent deformity correction by posterior approach were analyzed through a longitudinal assessment of a cross-sectional area (CSA) in paraspinal muscles with a minimum five-year follow-up. The CSA were measured using axial computed tomography images at the level of the upper endplate L4 by manual tracing. The last follow-up CSA ratio of the psoas major muscle (124.5%) was significantly increased compared to the preoperative CSA ratio (122.0%) (p < 0.005). The last follow-up CSA ratio of the multifidus and erector spine muscles significantly decreased compared to the preoperative CSA ratio (all p < 0.005). The CSA ratio of the erector spine muscle was correlated with the CSA ratio of the psoas major (correlation coefficient = 0.546, p < 0.001). Therefore, minimizing the injury to the erector spine muscle is imperative to maintaining psoas major muscle development in AIS surgery by posterior approach. View Full-Text
Keywords: adolescent idiopathic scoliosis; paraspinal muscles; cross-sectional area; posterior approach; computed tomography adolescent idiopathic scoliosis; paraspinal muscles; cross-sectional area; posterior approach; computed tomography
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MDPI and ACS Style

Kim, H.J.; Yang, J.H.; Chang, D.-G.; Suk, S.-I.; Suh, S.W.; Nam, Y.; Kim, S.-I.; Song, K.-S. Long-Term Influence of Paraspinal Muscle Quantity in Adolescent Idiopathic Scoliosis Following Deformity Correction by Posterior Approach. J. Clin. Med. 2021, 10, 4790. https://doi.org/10.3390/jcm10204790

AMA Style

Kim HJ, Yang JH, Chang D-G, Suk S-I, Suh SW, Nam Y, Kim S-I, Song K-S. Long-Term Influence of Paraspinal Muscle Quantity in Adolescent Idiopathic Scoliosis Following Deformity Correction by Posterior Approach. Journal of Clinical Medicine. 2021; 10(20):4790. https://doi.org/10.3390/jcm10204790

Chicago/Turabian Style

Kim, Hong J., Jae H. Yang, Dong-Gune Chang, Se-Il Suk, Seung W. Suh, Yunjin Nam, Sang-Il Kim, and Kwang-Sup Song. 2021. "Long-Term Influence of Paraspinal Muscle Quantity in Adolescent Idiopathic Scoliosis Following Deformity Correction by Posterior Approach" Journal of Clinical Medicine 10, no. 20: 4790. https://doi.org/10.3390/jcm10204790

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