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

 Jae Eun Park  ;  Yeon-Jae Seong2  ;  Eun Sang Kim2  ;  Dongho Park1  ;  Yonghyun Lee1  ;  Hyerin Park1  ;  and Dong-wook Rha1 
 Yonsei Medical Journal, Vol.60(9) : 876-881, 2019 
Journal Title
 Yonsei Medical Journal 
Issue Date
Pennation angle ; fascicle length ; muscle architecture ; muscle thickness ; nerve ablation ; ultrasonography
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.
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1. College of Medicine (의과대학) > Dept. of Rehabilitation Medicine (재활의학교실) > 1. Journal Papers
Yonsei Authors
Rha, Dong Wook(나동욱) ORCID logo https://orcid.org/0000-0002-7153-4937
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