Cervical and thoracic/lumbar motion and muscle strength in surgically treated adolescent idiopathic scoliosis patients


To date, only one study assessed the spinal mobility and muscle strength of patients who were treated either with fusion or brace treatment.


The aim of this retrospective study was to evaluate the range of motion (ROM) and strength of the cervical and thoracic/lumbar spine in patients who underwent spinal fusion for the treatment of adolescent idiopathic scoliosis (AIS) in comparison to healthy individuals.


Patients (n= 28) who were treated surgically for AIS were included in the study. An age and gender matched control group (n= 22) was included that consisted of healthy individuals. DAVID® Lumbar/Thoracic Extension, Lumbar/Thoracic Rotation, and Cervical Extension/Lateral Flexion devices were used to measure cervical and lumbar/thoracic ROM as well as muscle strength.


Significant differences were observed between groups in all ROM measurements except thoracic/lumbar sagittal flexion ROM measurement (p= 0.198). There were significant differences between groups in terms of muscle strength, except thoracic lumbar left rotation strength (p= 0.081).


The findings of the current study demonstrated that cervical and thoracic/lumbar range of motion, as well as muscle strength, were significantly decreased in surgically treated adolescent idiopathic scoliosis patients compared to healthy counterparts. However, trunk (thoracic/lumbar) flexion range of motion and trunk left rotation muscle strength were not significantly different.


Adolescent idiopathic scoliosis; muscle strength; posterior instrumentation; range of motion; surgery.

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