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Optimal needle placement for extensor hallucis longus muscle using ultrasound verification
Author(s) -
Kwak Jin Myoung,
Kim Dong Hyun,
Lee Yang Gyun,
Choi YoonHee
Publication year - 2019
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.26384
Subject(s) - medicine , neurovascular bundle , ultrasonography , ultrasound , surgery , anatomy , nuclear medicine , radiology
: 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