FIELD: medicine.
SUBSTANCE: invention relates to medicine, namely to functional diagnostics, neurosurgery and neurology, and can be used for diagnosis of preganglionic injury of spinal roots, which are part of brachial plexus. Method involves magnetic stimulation to determine the presence of evoked muscle responses from the muscles innervated by the injured spinal root. Electrodes are placed on muscles innervated by long motor branches of brachial plexus: heads of triceps muscle of shoulder, on the abductor fifth finger muscle, on a short abductor muscle of the first finger, on the head of the biceps muscle of the shoulder and on the infraspinatus muscle. Coil of magnetic stimulator is applied alternately on the area of projection of roots forming primary trunks of brachial plexus C5-Th1, with registration of evoked muscular responses. If there is no recording of evoked muscular responses from one of the muscles innervated by the brachial plexus trunk, which includes a spinal root, damage to the nerve structures of the given segment is stated. Further, the stimulus is applied directly to the primary shaft itself, which includes a spinal root of the injured segment. When recording the evoked muscular responses from the muscles innervated by the corresponding brachial plexus trunk, the preganglionic level of the spinal root injury is diagnosed.
EFFECT: method provides higher accuracy of diagnosing the presence and level of preganglionic root damage of a specific segment, the nerve structures of which are part of the brachial plexus, due to alternate application of the stimulus on the projection area of the spinal roots, which form the primary trunks of the brachial plexus, with subsequent application of a stimulus directly on the primary shaft itself, which includes a spinal root of the injured segment.
1 cl, 5 ex
