Anatomical basis of pronator teres for electromyography needle placement using ultrasonography

Myung Kyu Park, In Yae Cheong, Ki Hoon Kim, Byung Kyu Park, Dong Hwee Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Objective To find the optimal needle insertion site for needle electromyography of the pronator teres (PT) muscle among commonly used sites. Methods: Fifty forearms of 25 healthy subjects were evaluated. Four expected needle insertion points were designated as follows. Point 0 was positioned at the midpoint between the medial epicondyle and medial border of biceps tendon in the elbow crease. Points 1, 2, and 3 were located 2 cm, 3.5 cm and 5 cm distal to point 0, respectively. We assumed that the thickness of PT and the distances between a vertical line from each point to the medial margin of the PT were significant parameters for finding the optimal site. Thus, we measured these parameters through ultrasonographic examination. Results: In men, the PT was thickest at point 2, and in women, at point 1. The distance between the expected needle insertion line and medial margin of PT was longest at point 1 in both men and women, and was statistically significant compared to points 2 and 3. Both men and women had neurovascular bundles located lateral to the expected needle insertion line. Conclusion: The most appropriate and safe needle electromyographic insertional site for the PT is 2-3.5 cm distal to the mid-point between the biceps tendon and medial epicondyle in the elbow crease and the needle should be inserted upward and medial.

Original languageEnglish
Pages (from-to)39-46
Number of pages8
JournalAnnals of Rehabilitation Medicine
Volume39
Issue number1
DOIs
Publication statusPublished - 2015 Jan 1

Fingerprint

Electromyography
Needles
Ultrasonography
Elbow
Tendons
Forearm
Healthy Volunteers
Muscles

Keywords

  • Electromyography
  • Forearm
  • Ultrasonography

ASJC Scopus subject areas

  • Rehabilitation

Cite this

Anatomical basis of pronator teres for electromyography needle placement using ultrasonography. / Park, Myung Kyu; Cheong, In Yae; Kim, Ki Hoon; Park, Byung Kyu; Kim, Dong Hwee.

In: Annals of Rehabilitation Medicine, Vol. 39, No. 1, 01.01.2015, p. 39-46.

Research output: Contribution to journalArticle

@article{1d008fb24dfb431ba021e5bf77ff719d,
title = "Anatomical basis of pronator teres for electromyography needle placement using ultrasonography",
abstract = "Objective To find the optimal needle insertion site for needle electromyography of the pronator teres (PT) muscle among commonly used sites. Methods: Fifty forearms of 25 healthy subjects were evaluated. Four expected needle insertion points were designated as follows. Point 0 was positioned at the midpoint between the medial epicondyle and medial border of biceps tendon in the elbow crease. Points 1, 2, and 3 were located 2 cm, 3.5 cm and 5 cm distal to point 0, respectively. We assumed that the thickness of PT and the distances between a vertical line from each point to the medial margin of the PT were significant parameters for finding the optimal site. Thus, we measured these parameters through ultrasonographic examination. Results: In men, the PT was thickest at point 2, and in women, at point 1. The distance between the expected needle insertion line and medial margin of PT was longest at point 1 in both men and women, and was statistically significant compared to points 2 and 3. Both men and women had neurovascular bundles located lateral to the expected needle insertion line. Conclusion: The most appropriate and safe needle electromyographic insertional site for the PT is 2-3.5 cm distal to the mid-point between the biceps tendon and medial epicondyle in the elbow crease and the needle should be inserted upward and medial.",
keywords = "Electromyography, Forearm, Ultrasonography",
author = "Park, {Myung Kyu} and Cheong, {In Yae} and Kim, {Ki Hoon} and Park, {Byung Kyu} and Kim, {Dong Hwee}",
year = "2015",
month = "1",
day = "1",
doi = "10.5535/arm.2015.39.1.39",
language = "English",
volume = "39",
pages = "39--46",
journal = "Annals of Rehabilitation Medicine",
issn = "2234-0645",
publisher = "Korean Academy of Rehabilitation Medicine (KARM)",
number = "1",

}

TY - JOUR

T1 - Anatomical basis of pronator teres for electromyography needle placement using ultrasonography

AU - Park, Myung Kyu

AU - Cheong, In Yae

AU - Kim, Ki Hoon

AU - Park, Byung Kyu

AU - Kim, Dong Hwee

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Objective To find the optimal needle insertion site for needle electromyography of the pronator teres (PT) muscle among commonly used sites. Methods: Fifty forearms of 25 healthy subjects were evaluated. Four expected needle insertion points were designated as follows. Point 0 was positioned at the midpoint between the medial epicondyle and medial border of biceps tendon in the elbow crease. Points 1, 2, and 3 were located 2 cm, 3.5 cm and 5 cm distal to point 0, respectively. We assumed that the thickness of PT and the distances between a vertical line from each point to the medial margin of the PT were significant parameters for finding the optimal site. Thus, we measured these parameters through ultrasonographic examination. Results: In men, the PT was thickest at point 2, and in women, at point 1. The distance between the expected needle insertion line and medial margin of PT was longest at point 1 in both men and women, and was statistically significant compared to points 2 and 3. Both men and women had neurovascular bundles located lateral to the expected needle insertion line. Conclusion: The most appropriate and safe needle electromyographic insertional site for the PT is 2-3.5 cm distal to the mid-point between the biceps tendon and medial epicondyle in the elbow crease and the needle should be inserted upward and medial.

AB - Objective To find the optimal needle insertion site for needle electromyography of the pronator teres (PT) muscle among commonly used sites. Methods: Fifty forearms of 25 healthy subjects were evaluated. Four expected needle insertion points were designated as follows. Point 0 was positioned at the midpoint between the medial epicondyle and medial border of biceps tendon in the elbow crease. Points 1, 2, and 3 were located 2 cm, 3.5 cm and 5 cm distal to point 0, respectively. We assumed that the thickness of PT and the distances between a vertical line from each point to the medial margin of the PT were significant parameters for finding the optimal site. Thus, we measured these parameters through ultrasonographic examination. Results: In men, the PT was thickest at point 2, and in women, at point 1. The distance between the expected needle insertion line and medial margin of PT was longest at point 1 in both men and women, and was statistically significant compared to points 2 and 3. Both men and women had neurovascular bundles located lateral to the expected needle insertion line. Conclusion: The most appropriate and safe needle electromyographic insertional site for the PT is 2-3.5 cm distal to the mid-point between the biceps tendon and medial epicondyle in the elbow crease and the needle should be inserted upward and medial.

KW - Electromyography

KW - Forearm

KW - Ultrasonography

UR - http://www.scopus.com/inward/record.url?scp=84938074214&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84938074214&partnerID=8YFLogxK

U2 - 10.5535/arm.2015.39.1.39

DO - 10.5535/arm.2015.39.1.39

M3 - Article

AN - SCOPUS:84938074214

VL - 39

SP - 39

EP - 46

JO - Annals of Rehabilitation Medicine

JF - Annals of Rehabilitation Medicine

SN - 2234-0645

IS - 1

ER -