ĐẶC ĐIỂM LÂM SÀNG, ĐIỆN SINH LÝ THẦN KINH CỦA TỔN THƯƠNG DÂY THẦN KINH TRỤ Ở KHUỶU TAY

Abstract

Objectives: To describe clinical and Electrodiagnosis of ulnar neuropathies at the elbow at Hanoi Medical University Hospital. Subjects and methods: A cross-sectional description of 25 patients diagnosed with ulnar neuropathies at the elbow. Result: Male/Female ratio = 2/1. The mean age was 46.1 ± 15.3. The disease occurs mainly in the working age group 18-60 (72%). The most common location of lesions is in the Epicondylar groove accounting for 60%, and 40% in the Cubital Tunel. Common clinical symptoms: 100% numbness in the hand, 96% decreased sensation. Symptoms of muscle weakness and atrophy accounted for 52% and 48%. 56% weak muscles of the little finger and the first dorsal interscapula, the rate of muscle atrophy in these two muscle groups is 48%. Weakness of the ulnar carpal flexor and deep common flexor of the fingers was less common with 28%. Clinical tests: Tinel sign has a sensitivity of 68%, Wartenberg sign is 56% and elbow flexion test is 40%. The classification of clinical lesions according to McGowan is common in the moderate group, accounting for 52%. Electrophysiologic evaluation: Very mild level accounts for the highest rate with 40%. The moderate and heavy groups were 24% and 32% respectively. Simple myelin damage is 36%, axonal injury alone is 4%, and mixed axon-myelin damage accounts for 60%. Conclusion: Common clinical symptoms of ulnar neuropathies at the elbow are sensory disturbances and motor weakness of the muscles controlled by the ulnar nerve, electrophysiology plays an important role in the diagnosis, identify and evaluate the extent of clinical injury.