Yonsei Med J.  2019 Sep;60(9):876-881. 10.3349/ymj.2019.60.9.876.

Architectural Changes in the Medial Gastrocnemius on Sonography after Nerve Ablation in Healthy Adults

Affiliations
  • 1Department and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea. medicus@yuhs.ac
  • 2Hafis Clinic, Seoul, Korea.

Abstract

Architectural changes in healthy muscle after denervation have not yet been reported. This study aimed to investigate architectural changes in the medial head of the gastrocnemius muscle (GCM) after aesthetic tibial nerve ablation in healthy adults using ultrasonography (US). The effects of tibial nerve ablation were verified by visual observation and surface electromyography analysis. US images of medial GCMs were taken by one trained physician using B-mode and real-time US with a linear-array probe before nerve ablation, at 1 week after nerve ablation and at 3 months after nerve ablation in an anatomic standing position with the feet about shoulder-width apart in 19 healthy adults (17 females and 2 males). Muscle thickness was significantly reduced on the left side at 1 week and 3 months after the procedure and on the right side at 3 months after the procedure (p<0.050). Although fascicle length was not significantly changed, pennation angle was significantly reduced on both sides at 3 months after the procedure (p<0.050). Muscle thickness and pennation angle of the muscle fascicle were significantly reduced, although fascicle length was not significantly changed, after tibial nerve ablation in the medial GCM of healthy adults.

Keyword

Pennation angle; fascicle length; muscle thickness; nerve ablation; ultrasonography; muscle architecture

MeSH Terms

Adult*
Denervation
Electromyography
Female
Foot
Gas Chromatography-Mass Spectrometry
Head
Humans
Muscle, Skeletal
Posture
Tibial Nerve
Ultrasonography
Full Text Links
  • YMJ
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
    DB Error: unknown error