Is there a correlation between upper lumbar disc herniation and multifidus muscle degeneration? A retrospective study of MRI morphology

摘要

Degenerative grade of multifidus muscle, measurement range of muscle, and average width of multifidus muscle: The red-labeled circles represent the total cross-sectional area of the multifidus muscle, including muscle and interlaminar fat (a, b, c). The white-labeled circles represent the pure cross-sectional area of the multifidus muscle excluding interlaminar fat (c). The average width of the multifidus muscles on both sides is what we need (d). The degenerative grade of multifidus muscle: grade I (a), grade II (b), grade III (c). TMCSA: the total muscle cross-sectional area; PMCSA: the pure muscle cross-sectional area