Manifestation features of the sensorimotor deficit EMG-signs in patients with different forms of degenerative-and-dystrophic changes in the lumbosacral spine

Purpose. To evaluate the intensity and asymmetry of sensorimotor deficit in the lower limb system for different manifestations of the degenerative-and-dystrophic process in the lumbar spine. Materials and Methods. The lower limb muscles tested by electroneuromyography technique (global, stimulation ENMG) in 25 patients with LIV-V intervertebral disc hernia, and in 8 patients with LIV vertebral spondylolisthesis in order to evaluate the sensorimotor deficit intensity and asymmetry for different manifestations of the spine degenerative-and-dystrophic process. A method of EMG-evaluation proposed for the radicular pain syndrome revealed at the moment of examination. Results. Patients with LIV-V intervertebral disc herniae as established have both lower limbs involved despite the presence of clear lateralization of clinical radiculopathy signs in the most examined patients. In case of the degenerative-and-dystrophic process progression ending by vertebral displacement, the asymmetry of initially developed motor disorders eliminated due to the decrease of functional characteristics of “less involved” limb. Conclusion. The data allowed more detailed studying the processes of sensorimotor deficit formation for destructive involvements of the lumbosacral spine.