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A Martin-Gruber anastomosis (MGA) is a connection from the median nerve to the ulnar nerve in the forearm. An anastomosis occurs when two structures that normally are not connected have a connection. In this case the connection is a nerve.
Nerve communication between the median and ulnar nerves in the forearm is known as Martin-Gruber anastomosis. This implies that nerve fascicles from the Median nerve transfer to the Ulnar nerve. The prevalence of Martin Gruber Anastomosis (MGA) is between 3.3 and 40% of the population with a prevalence of 11.6 % in the Indian population.
Martin-Gruber Anastomosis is the most common anastomosis anomaly between the two nerves. In cases of nerve lesions of the median or ulnar nerve, this anastomosis serves as a conduit or an alternative innervation of parts of the hand and the forearm (it is really a detour).
Feb 23, 2016 · The main objective of this study was to describe Martin-Gruber anastomosis anatomically and to recognize its clinical repercussions. Method 100 forearms of 50 adult cadavers were dissected in an anatomy laboratory.
- Cristina Schmitt Cavalheiro, Mauro Razuk Filho, Gabriel Pedro, Maurício Ferreira Caetano, Luiz Angel...
- 10.1016/j.rboe.2016.02.003
- 2016
- Rev Bras Ortop. 2016 Mar-Apr; 51(2): 214-223.
Aug 1, 2017 · Martin-Gruber Anastomosis is the most common anastomosis anomaly between the two nerves. In cases of nerve lesions of the median or ulnar nerve, this anastomosis serves as a conduit or an...
- 5 min
- 28.9K
- nabil ebraheim
Aug 16, 2023 · Learn about the anatomy, history and clinical importance of Martin-Gruber anastomosis, a common interneural communication between the median and ulnar nerves in the forearm. Find out how it can affect nerve conduction studies and carpal tunnel syndrome diagnosis.
Aug 10, 2023 · Compression of the AIN nerve (also known as Kiloh-Nevin's syndrome) is a forearm compressive neuropathy that results in motor deficits of the AIN nerve. Diagnosis can be made with a careful neurological exam (weakness of thumb, index and middle finger flexion) with inability to make OK sign and normal median nerve sensory exam.
