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Journal of the Korean Academy of Rehabilitation Medicine 2008;32(1):80-83.
Prevalence of Denervation Potentials from Foot Intrinsic and Lumbosacral Paraspinal Muscles in Asymptomatic Persons in Korea.
Oh, Ju Sun , Lee, Be Na , Lim, Jeong Hoon , Song, Dae Heon , Rhee, Won Ihl
Department of Rehabilitaiton Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea. serrom@catholic.ac.kr
무증상 한국 성인의 발근육과 허리엉치 척추옆 근의 탈신경 전위의 빈도
오주선, 이베나, 임정훈, 송대헌, 이원일
가톨릭대학교 의과대학 재활의학교실
Abstract
Objective
To determine the prevalence of denervation potentials from the foot intrinsic and the lumbosacral paraspinal muscles in asymptomatic persons in Korea.
Method
Nerve conduction studies were performed in 80 asymptomatic persons at sural, peroneal and tibial nerves. We excluded 15 persons with abnormal values of nerve conduction studies. In our study, 36 males and 29 females participated and the mean age of subjects was 52.9 years. We checked denervation potentials from unilateral lumbosacral paraspinal (L4-S1) and foot intrinsic muscles (abductor hallucis and extensor digitorum brevis muscle) by needle EMG.
Results
The prevalence of denervation potentials from foot intrinsic muscles was 3% (2 cases out of 65 asymptomatic subjects). Denervation potentials consisting of a positive sharp wave were seen from the abductor hallucis muscle. No subjects showed any denervation potentials from the lumbosacral paraspinal muscles in our study. Abnormal X-ray findings were seen in subjects who had denervation potentials from the foot intrinsic muscles.
Conclusion
The prevalence of denervation potentials from the foot intrinsic and the lumbosacral paraspinal muscles in asymptomatic person was not as high as previously reported. (J Korean Acad Rehab Med 2008; 32: 80-83)
Key Words: Denervation potentials, Foot intrinsic muscles, Lumbosacral paraspinal muscles, Asymptomatic person
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