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Roy, Joyeeta; Henry, Brandon M.; PĘkala, PrzemysŁaw A.; Vikse, Jens; Saganiak, Karolina; Walocha, Jerzy A.; Tomaszewski, Krzysztof A.

Median and ulnar nerve anastomoses in the upper limb: A meta‐analysis

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  • Media type: E-Article
  • Title: Median and ulnar nerve anastomoses in the upper limb: A meta‐analysis
  • Contributor: Roy, Joyeeta; Henry, Brandon M.; PĘkala, PrzemysŁaw A.; Vikse, Jens; Saganiak, Karolina; Walocha, Jerzy A.; Tomaszewski, Krzysztof A.
  • imprint: Wiley, 2016
  • Published in: Muscle & Nerve
  • Language: English
  • DOI: 10.1002/mus.24993
  • ISSN: 1097-4598; 0148-639X
  • Origination:
  • Footnote:
  • Description: <jats:title>ABSTRACT</jats:title><jats:sec><jats:title>Introduction</jats:title><jats:p>The most frequently described anomalous neural connections between the median and ulnar nerves in the upper limb are: Martin‐Gruber anastomosis (MGA), Marinacci anastomosis (MA), Riche‐Cannieu anastomosis (RCA), and Berrettini anastomosis (BA). The reported prevalence rates and characteristics of these anastomoses vary significantly between studies.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>A search of electronic databases was performed to identify all eligible articles. Anatomical data regarding the anastomoses were pooled into a meta‐analysis using MetaXL 2.0.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>A total of 58 (<jats:italic>n</jats:italic> = 10,562 upper limbs) articles were included in the meta‐analysis. The pooled prevalences were: MGA, 19.5% (95% confidence interval [CI], 16.2%–23.1%); MA, 0.7% (95% CI, 0.1%–1.7%); RCA, 55.5% (95% CI, 30.6%–79.1%); and BA, 60.9% (95% CI, 36.9%–82.6%). The results also showed that MGA was more commonly found unilaterally (66.8%), on the right side (15.7%), following an oblique course (84.8%), and originating from the anterior interosseous nerve with a prevalence of 57.6%.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>As anastomoses between the median and ulnar nerves occur commonly, detailed anatomical knowledge is essential for accurate interpretation of electrophysiological findings and reducing the risk of iatrogenic injuries during surgical procedures. <jats:italic>Muscle Nerve</jats:italic> <jats:bold>54</jats:bold>: 36–47, 2016</jats:p></jats:sec>