Importance of Anatomic Peculiarities and Ultrasound-Guided Electromyography of the Extensor Indicis Proprius Muscle

Fatma Elleuch; Wafa Elleuch; Baya M Kallel; Houcem Harbi; Sameh Ghroubi; Habib M Elleuch

doi:10.7759/cureus.20154

Importance of Anatomic Peculiarities and Ultrasound-Guided Electromyography of the Extensor Indicis Proprius Muscle

Cureus. 2021 Dec 4;13(12):e20154. doi: 10.7759/cureus.20154. eCollection 2021 Dec.

Authors

Fatma Elleuch¹, Wafa Elleuch², Baya M Kallel², Houcem Harbi³, Sameh Ghroubi², Habib M Elleuch⁴

Affiliations

¹ Physiology, Habib Bourguiba Hospital, University of Sfax, Sfax, TUN.
² Physical Medicine & Rehabilitation, Habib Bourguiba Hospital, University of Sfax, Sfax, TUN.
³ General Surgery, Research Laboratory LR21ES04, Habib Bourguiba Hospital, University of Sfax, Sfax, TUN.
⁴ Physical Medicine & Rehabilitation, Research Laboratory LR20ES09, Habib Bourguiba Hospital, University of Sfax, Sfax, TUN.

Abstract

The extensor indicis proprius muscle (EIPM) is considered a key muscle in the assessment of the level of the neurologic lesion causing any motor or sensory medio-cubital impairment of the hand. The aim of this study is to illustrate the anatomical peculiarities of the EIPM, the ultrasound (US) anatomy of the inferoposterior part of the forearm, and the technique of US-guided electromyography (EMG) of the EIPM. The US-guided EMG of the EIPM is technically easy and safe for young practitioners, provided there is a good knowledge of US anatomy of the inferoposterior part of the forearm.

Keywords: anatomy; electromyography; extensor indicis proprius muscle; residents; ultrasound.