Optimal Placement of Needle Electromyography in Extensor Indicis: A Cadaveric Study
| Autor: | Im Joo Rhyu, Seong Gyu Lim, Dong Hwee Kim, Hong Bum Park, Byung Kyu Park, Jin Young Im, Dasom Kim, Ki Hoon Kim, Seok Jun Lee |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Ulnar styloid process
030506 rehabilitation Extensor indicis animal structures lcsh:Medicine 03 medical and health sciences 0302 clinical medicine Forearm Cadaver medicine Cadaver dissection Needle electromyography business.industry Electromyography Electrodiagnosis Rehabilitation Ulna lcsh:R Anatomy medicine.anatomical_structure Needles Original Article 0305 other medical science Cadaveric spasm business 030217 neurology & neurosurgery |
| Zdroj: | Annals of Rehabilitation Medicine, Vol 42, Iss 3, Pp 473-476 (2018) Annals of Rehabilitation Medicine |
| ISSN: | 2234-0653 2234-0645 |
| Popis: | Objective To identify the center of extensor indicis (EI) muscle through cadaver dissection and compare the accuracy of different techniques for needle electromyography (EMG) electrode insertion. Methods Eighteen upper limbs of 10 adult cadavers were dissected. The center of trigonal EI muscle was defined as the point where the three medians of the triangle intersect. Three different needle electrode insertion techniques were introduced: M1, 2.5 cm above the lower border of ulnar styloid process (USP), lateral aspect of the ulna; M2, 2 finger breadths (FB) proximal to USP, lateral aspect of the ulna; and M3, distal fourth of the forearm, lateral aspect of the ulna. The distance from USP to the center (X) parallel to the line between radial head to USP, and from medial border of ulna to the center (Y) were measured. The distances between 3 different points (M1- M3) and the center were measured (marked as D1, D2, and D3, respectively). Results The median value of X was 48.3 mm and that of Y was 7.2 mm. The median values of D1, D2 and D3 were 23.3 mm, 13.3 mm and 9.0 mm, respectively. Conclusion The center of EI muscle is located approximately 4.8 cm proximal to USP level and 7.2 mm lateral to the medial border of the ulna. Among the three methods, the technique placing the needle electrode at distal fourth of the forearm and lateral to the radial side of the ulna bone (M3) is the most accurate and closest to the center of the EI muscle. |
| Databáze: | OpenAIRE |
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