Musculature adaption in patients with lumbosacral transitional vertebrae: a matched-pair analysis of 46 patients

Objective Even though lumbosacral transitional vertebrae (LSTV) are one of the most common congenital anomalies of the spine, their effect on surrounding soft tissues is not well-studied. We therefore aimed at analyzing the association between LSTV and changes in volume, mass, symmetry, and degenera...

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Bibliographic Details
Published in:Skeletal radiology 2021-08, Vol.50 (8), p.1697-1704
Main Authors: Becker, Luis, Ziegeler, Katharina, Diekhoff, Torsten, Palmowski, Yannick, Pumberger, Matthias, Schömig, Friederike
Format: Article
Language:English
Subjects:
Care and treatment
Classification
Computed tomography
Congenital anomalies
Congenital defects
Correlation coefficients
CT imaging
Degeneration
Genetic disorders
Imaging
Medicine
Medicine & Public Health
Muscles
Nuclear Medicine
Orthopedics
Pathology
Pelvis
Radiology
Scientific
Scientific Article
Segmentation
Soft tissues
Spine (lumbar)
Trunk muscles
Vertebrae
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Summary:Objective Even though lumbosacral transitional vertebrae (LSTV) are one of the most common congenital anomalies of the spine, their effect on surrounding soft tissues is not well-studied. We therefore aimed at analyzing the association between LSTV and changes in volume, mass, symmetry, and degeneration of lumbar and trunk muscles. Materials and methods Abdomen–pelvis CT scans were analyzed in patients with LSTV and a matched control group. LSTV were classified according to the Castellvi classification. Muscles were segmented from the remaining soft tissue and their cross-sectional area and volume were examined at five defined levels. Threshold segmentation was used to differentiate between muscle fibers and fat tissue. Matched pairs were compared using Wilcoxon rank sum tests. For comparison of categorical data, chi-squared tests were performed and for associations between the degree of fusion and muscle size and degeneration, Spearman’s correlation coefficients were calculated. Inter- and intrarater reliabilities were evaluated by computing intraclass correlation coefficients. Results Forty-six patients with LSTV and 46 controls were included. Muscle volume of the paraspinal and trunk muscles was significantly lower (707.0 cm 3 vs. 809.7 cm 3 , p  
ISSN:0364-2348
1432-2161
DOI:10.1007/s00256-021-03722-x