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- Title
Analysis of the frequency of Martin–Gruber anastomosis in patients with carpal tunnel syndrome.
- Authors
Mohamed, Hager El-Shehawy; Abdel-Monem, Samia M.; Hammad, Gamal Abdel-Ghafaar; Mahgoub, Marwa Yahia
- Abstract
Background: Martin–Gruber anastomosis (MGA) is one of the most common anomalous innervations of the upper limb. It may alter the usual clinical picture and electrophysiological characteristics of median nerve (MN) injury or ulnar nerve (UN) injury. Aim: To determine the mutual relation between MGA and carpal tunnel syndrome (CTS) regarding their association and to explore whether certain patterns of MGA are more prevalent in patients with CTS. Methods: This study included 100 forearms of 64 subjects. They were 37 subjects complaining of unilateral or bilateral clinical symptoms of idiopathic CTS according to the criteria of the American Academy of Neurology and 27 subjects healthy or having traumatic lesions in either the upper or lower limbs with no neurological disorders. Electrophysiological studies of the MN and UN for the confirmation of CTS as well as the validation of MGA were done. Results: By electrophysiological examination, MGA was encountered in 22% forearms of all the studied groups, mostly females. MGA type II and type III were the commoner types, each occurring in 40.9%, while type I and type IV each occurred in 9.1%. MGA type II was prevalent in the control group, while type III associated subjects with only clinical CT symptoms. Conclusion: MGA is not prevalent in patients with CTS. Different types of MGA are present in CTS, but MGA was not implicated in the occurrence, severity, or electrodiagnostic features of CTS.
- Publication
Egyptian Rheumatology & Rehabilitation, 2022, Vol 49, Issue 1, p1
- ISSN
1110-161X
- Publication type
Article
- DOI
10.1186/s43166-022-00156-8