Optimal needle placement for extensor hallucis longus muscle using ultrasound verification

ABSTRACT Introduction: The extensor hallucis longus (EHL) muscle is important for diagnosis of neurologic lesions. It is also a target muscle for treatment. We investigated EHL with ultrasonography to determine optimal needle placement for safety and accuracy. Methods: A total of 96 legs of 48 healt...

Full description

Saved in:
Bibliographic Details
Published in:Muscle & nerve 2019-03, Vol.59 (3), p.331-336
Main Authors: Kwak, Jin Myoung, Kim, Dong Hyun, Lee, Yang Gyun, Choi, Yoon‐Hee
Format: Article
Language:English
Subjects:
anatomy
botulinum toxin
Electromyography
extensor hallucis longus muscle
Identification methods
Lesions
Muscles
needles
Placement
Probabilistic methods
Skin
Ultrasonic imaging
Ultrasound
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:ABSTRACT Introduction: The extensor hallucis longus (EHL) muscle is important for diagnosis of neurologic lesions. It is also a target muscle for treatment. We investigated EHL with ultrasonography to determine optimal needle placement for safety and accuracy. Methods: A total of 96 legs of 48 healthy volunteers were examined through ultrasonography. Four published electromyographic methods for finding the EHL were assessed. We identified the midpoint of EHL (MD) using landmarks to determine optimal needle placement. Results: Mean values of bimalleolar line‐MD on skin (MD‐S) and tibial crest‐MD‐S were 10.5 ± 1.2 cm and 3.6 ± 0.4 cm, respectively. The depth of MD was 1.6 ± 0.2 cm. According to 4 EMG methods, the probability of needle penetrating EHL was 13% to 79% and that of needle penetrating the neurovascular bundle was 50% to 89%. Conclusions: Using ultrasonography, we could determine optimal needle placement in the EHL. Muscle Nerve 59:331–336, 2019
ISSN:0148-639X
1097-4598
DOI:10.1002/mus.26384