Chinese Journal of Clinical Anatomy ›› 2021, Vol. 39 ›› Issue (3): 263-268.doi: 10.13418/j.issn.1001-165x.2021.03.004

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Morphological changes of paravertebral muscles in patients with lumbar degenerative scoliosis

Yang Bin1, Zheng Minghui1, Ling Duhua1, Chen Weidong1, Qu Dongbin2   

  1. 1. Department of Spinal Orthopaedics, Southern Hospital, Southern Medical University, Guangzhou 510515, China; 2. Department of Orthopaedics, Zengcheng Branch of Southern Hospital, Southern Medical University, Guangzhou 511300, China
  • Received:2020-01-16 Online:2021-05-25 Published:2021-06-02

Abstract: Objectives To observe the morphological changes of paraspinal muscles on both sides of lumbar degenerative patients, and to analyze its clinical significance. Methods A retrospective analysis of 84 patients with lumbar degenerative lumbar stenosis who were hospitalized from January 2015 to December 2017 in our hospital was performed. The patients were divided into the following three groups: group A: the parietal vertebra was located at the L2-3 intervertebral disc, group B: the parietal vertebra was located at the L3 vertebral body, and group C: the parietal vertebra was located at the L3-4 intervertebral disc. The data of paraspinal muscles were measured by image pro PLus software. Results (1) In group A, the area of the multifissure muscle (MF) in the apical vertebra segment was larger than that in the concave side. The degree of MF fat infiltration in the convex side was smaller than that in the concave side. (2) The area ratio of the psoas major muscle (PS) in the convex side was smaller than that in the concave side, and the fat infiltration degree. (3) Groups A, B and C had similar results on the upper and next intervertebral disc plane of the parietal vertebra. Conclusions In patients with degenerative scoliosis, the degree of muscle degeneration in the convex and concave side is different, the concave side is larger than the convex side, and the degenerative segment mainly occurs in the upper and lower segments of the parietal vertebra. Muscle degeneration is mainly caused by the increasing of fat infiltration of muscle.

Key words: Lumbar degenerative scoliosis,  Degree of fat infiltration,  Paraspinal muscle

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