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Updated: Oct 11, 2025

Robotic Pancreatoduodenectomy for Pancreatic Head Cancer: a Case Report of a Standardized Technique
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Marinacci Anastomosis: A Case Report.

Santosh L Wakode1, Naveen Ravi1

  • 1Physiology, All India Institute of Medical Sciences, Bhopal, IND.

Cureus
|December 3, 2021
PubMed
Summary

The rare Marinacci anastomosis, an ulnar to median nerve connection in the forearm, was incidentally found during electrophysiological studies after a severe injury. Understanding this anomaly is crucial for accurate diagnosis and preventing surgical errors.

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Area of Science:

  • Neuroscience
  • Anatomy
  • Clinical Electrophysiology

Background:

  • The Marinacci anastomosis, also known as the reverse Martin-Gruber anastomosis, is a rare anatomical variation.
  • It involves an anomalous intercommunication between the ulnar nerve and the median nerve within the forearm.

Observation:

  • A patient with bilateral forearm fractures sustained from a road traffic accident underwent surgical treatment.
  • Subsequent nerve conduction studies unexpectedly revealed evidence of the Marinacci anastomosis.

Findings:

  • The study incidentally identified the presence of the Marinacci anastomosis in a patient with forearm trauma.
  • Electrophysiological data confirmed the anomalous nerve communication.

Implications:

Keywords:
electrophysiologymarinacci anastomosisnerve conduction studyreverse martin gruber anastomosisulnar to median communication

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  • Awareness of this rare anastomosis is vital for clinicians to avoid misdiagnosing nerve-related symptoms.
  • Proper knowledge can prevent misinterpretation of nerve conduction study results.
  • Understanding this anatomical variation aids in mitigating iatrogenic injuries during forearm surgeries.