Martin–gruber Anastomosis and Its Clinical Importance

Abstract

MARTIN-GRuBER ANASTOMOSIS AND ITS CLINICAL IMPORTANCE I. G. Mikhaylyuk Department of Nervous System Diseases with Medical Genetics and Neurosurgery, Yaroslavl State Medical University, Ministry of Health of Russia; 5 Revolyutsionnaya St., Yaroslavl, 150000, Russia The communication between the median and ulnar nerves on the forearm, known as the Martin-Gruber anastomosis, is widespread in the general population. Despite the fact that this connection is described by anatomists in XVIII century, its importance has only recently been appreciated because of the widespread of the electrophysiological techniques in clinical practies. However, in the Russian literature aspects of its practical value described so far is not enough. This article deals with the prevalence of the anastomosis, its anatomical and electrophysiological classification, options innervation of muscles of the hand, is carried out through him, described electrophysiological methods and criteria for its diagnosis, including the collision technique, in healthy subjects and patients with lesions of the median and ulnar nerves

Anomalous innervations: variations and typical electromyography pattern

“…Сочетание МГА с поражением срединного или лок-тевого нервов (компрессия в типичном месте или травма) приводит к дополнительным нейрофизиологическим изменениям при проведении ЭНМГ-исследования, вы-зывая затруднения в их интерпретации. Однако это не яв-ляется предметом настоящей статьи и хорошо описано в литературе [10,12,13].…”