Changes in cross-sectional areas of posterior extensor muscles in thoracic spine: a 10-year longitudinal MRI study.

ABSTRACT: Age-related changes in the posterior extensor muscles of the cervical and lumbar spine have been reported in some studies; however, longitudinal changes in the thoracic spine of healthy subjects are rarely reported. Therefore, this study aimed to evaluate changes in the cross-sectional areas (CSAs) of posterior extensor muscles in the thoracic spine over 10 years and identify related factors. The subjects of this study were 85 volunteers (mean age: 44.7 ± 11.5) and the average follow-up period was about 10 years. The CSAs of the transversospinalis muscles, erector spinae muscles, and total CSAs of the extensor muscles from T1/2 to T11/12 were measured on magnetic resonance imaging. The extent of muscle fat infiltration was assessed by the signal intensity (luminance) of the extensor muscle

SUBMITTER: Umezawa H 

PROVIDER: S-EPMC9427759 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature