Features of Muscle Imbalance in Patients with Scheuermann’s Disease and Different Variants of Spinal Sagittal Contour
Objective — to study the functional state of the various muscle groups of the trunk and lower extremities in patients with Sheurmann’s disease. Methods: 1) clinical one, with assessment of the spine and hip joints mobility, tone, strength and tolerance of the various muscle groups of the trunk and lower extremities; 2) roentgenometric one, with evaluation of the thoracic kyphosis and lumbar lordosis; 3) electrophysiological one, with assessment of bioelectric activity of the lumbar part of musculus erector spinae right and left, in the upright position. Results. It was found that patients with the classic form of Sheurmann’s disease have spinal sagittal contour in the form of a C-shaped deformation with thoracic hyperkyphosis not compensated by corresponding lumbar antideformation. Atypical variants of the disease are characterized by straightening of spinal sagittal contour with degenerative lumbar kyphosis in the form of flat back deformation. In both forms of the Sheurmann’s disease, a muscles imbalance with increased tone, decreased strength and tolerance of the antigravity muscles was revealed.
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