Acta Ortopédica Mexicana

Domínguez-Gasca LG, Magaña-Reyes J, Álvarez-Rodríguez M, Domínguez-Carrillo LG
Injury of the anterior branch of the posterior interosseous nerve
Acta Ortop Mex 2019; 33 (2)

Language: Español
Page: 123-126
PDF: 115.98 Kb.

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Introduction: Posterior interosseous nerve syndrome, a branch of the radial nerve at the level of the forearm, is characterized by the motor function loss of some or all of the muscles innervated distally. Clinical case: A 26-year-old male with a history of proximal radius fracture associated to radial nerve injury, treated with osteosynthesis 7 years earlier, with full recovery, who currently presented intense pain 4 cm distal to the radial head, accompanied by paralysis of Extensor pollicis longus, Extesnor pollicis brevis and Abductor pollicis longus, with paresis of the Extensor indicis propius, in which a diagnosis of entrapment syndrome of the anterior descending branch of the posterior interosseous nerve (SNIP) was performed. Discussion: The conservative management of SNIP is indicated during the first 8-12 weeks, if no improvement is found, the indication for surgical exploration is indicated, and the removal of osteosynthesis material is controversial.

Key words: Posterior interosseous nerve, paralysis, complication, surgery, fracture.


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