EMG-characteristics of sensomotor deficiency expressiveness in the lower limb system of patients with different localization of thoracic and lumbar spine damage

Aim of the work: comparison of the neurophysiological characteristics of sensomotor innervation status of lower limb muscles in patients with thoracolumbar spine damage localization at different levels. The data of global (tests: ―relaxation", ―maximal voluntary muscle tension») and stimulation (M-response, Н-reflexes) EMG have been analyzed in 48 patients (36 males, 12 females) at the age of 11-55 years, divided into three groups by the level of spine damage: 1 gr. (DIV-DVIII) 4; 2 gr. (DIX-DXII) 10; 3 gr. (LI-LV) 32. The characteristic features of spinal cord functional shifts have been revealed in patients with consequences of spine-spinal cord injury of different localization, reflected in the postoperative dynamics of complementary EMG-caracteristics of posttraumatic sensomotor deficiency. The clearest EMG-signs of functional insufficiency in pre- and postoperative periods were observed in patients with spinal injury at DIX-DXII, level, that topologically corresponds to motoneuronal nuclei localization, i.e. to the arrangement of segmental motor centres of controlling lower limb muscle voluntary and reflex activity.