The effect of fatty infiltration, revision surgery, and sex on lumbar multifidus passive mechanical properties.
Bahar ShahidiJennifer A PadwalJeannie J SuGilad RegevVinko ZlomislicR Todd AllenSteven R GarfinCholl KimRichard L LieberSamuel R WardPublished in: JOR spine (2023)
Our results demonstrate that female sex is the primary driver for reduced single fiber elastic modulus of the multifidus, while severity of fatty infiltration is the primary driver for reduced elastic modulus at the level of the fiber bundle in individuals with lumbar spine pathology.