• Title/Summary/Keyword: Motor Nerve

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The Effect of Irradiation During Resistance Exercise Using a Diagonal Pattern on the Excitability of Nerves (대각선 패턴에서 저항운동 시 발생한 방산의 효과가 신경의 흥분성에 미치는 영향)

  • Rhee, Min-Hyung;Choi, Su-Hong;Ha, Kyung-Jin;Lee, Sang-Yeol
    • PNF and Movement
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    • v.19 no.1
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    • pp.97-104
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    • 2021
  • Purpose: The human body can experience a variety of injuries. As a result, it may be difficult to directly treat the damaged area. In such a case, indirect treatment is required. Indirect treatment is typically PNF treatment. Morphological changes in muscle have been confirmed through several previous studies; however, few studies have analyzed neurological changes. Therefore, the purpose of this study was to determine how irradiation during resistance exercise using a diagonal pattern effects neurological excitability. Methods: Electromyography was performed on 13 healthy adults. A compound muscle action potential (CMAP) was obtained through a median motor nerve conduction velocity test, which was conducted before and after performing the irradiation exercise and general exercise. Results: Compared to baseline measurements, there was no significant difference in the latency of the irradiation exercise and general exercise. The amplitude of the CMAP measured after the irradiation exercise was significantly higher than after general exercise. Conclusion: Neurological excitability was high in irradiation during resistance exercise using a diagonal pattern. When clinically direct treatment is difficult, it is thought that irradiation can be used indirectly as a technique to induce nerve excitability.

Use of the Fix and Flap Approach to Complex Open Elbow Injury: The Role of the Free Anterolateral Thigh Flap

  • Chui, Christopher Hoe-Kong;Wong, Chin-Ho;Chew, Winston Y.;Low, Mun-Hon;Tan, Bien-Keem
    • Archives of Plastic Surgery
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    • v.39 no.2
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    • pp.130-136
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    • 2012
  • Background : Complex elbow injuries with associated nerve, muscle, or joint injury commonly develop post-inury stiffness. In order to preserve function, joint congruency, elbow stability and durable wound coverage must be achieved in a timely manner. Methods : A retrospective review of patients who underwent orthopaedic fixation followed by free anterolateral thigh (ALT) flap soft tissue coverage was performed. Five patients were identified and included in this study. Results : We present a series of 5 cases managed with this principle. Soft tissue defects ranged in size from $4{\times}9cm$ ($36cm^2$) to $15{\times}30cm$ ($450cm^2$) and were located either posteriorly (n=4) or anteriorly (n=1). Associated injuries included open fractures (n=3) and motor nerve transection (n=2). Wound coverage was achieved in a mean duration of 18.8 days (range, 11 to 42 day). There were no flap failures and no major complications. The mean postoperative active elbow motion was $102^{\circ}$ (range, $45^{\circ}$ to $140^{\circ}$). Conclusions : In our small series we have highlighted the safety and utility of using the free ALT flap in complex elbow injuries. The ALT flap has many advantages which include abundant skin and subcutaneous tissue; vascularised vastus lateralis muscle that was used in our series to obliterate dead space, provide a vascular bed for nerve grafts and combat infection; and, access to fascia lata grafts for reconstruction of the triceps tendon.

A case of spinal muscular atrophy typeⅡ (제 2 형 척수근위축증(SMA type II; Spinal muscular atrophy typeⅡ) 환아 1례에 대한 증례보고)

  • Jo Hyeong-Jun;Lee Jin-Yong;Kim Deok-Gon
    • The Journal of Pediatrics of Korean Medicine
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    • v.14 no.1
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    • pp.197-204
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    • 2000
  • Neuromuscular disorders are common causes of weakness and hypotonia in the infantile period and in childhood. Accurate diagnosis of specific neuromuscular disorders depends first on identification of which aspect of the peripheral neuromuscular system is affected-the motor neuron in the spinal cord, the nerve root or peripheral nerve, the neuromuscular junction, or the muscle-and then on the determination of the etiology and specific clinical entity. Spinal muscular atrophy(SMA) is the most common autosomal-recessive genetic disorder lethal to infants. The three major childhood-onset forms of SMA are now usually called type I, type II and typeⅢ. Progression of the disease is due to loss of anterior horn cells, thought to be caused by apoptosis. Diagnosis is based on the course of the illness, as well as certain changes seen on nerve and muscle biopsy and electrodiagnostic studies. More recently, our understanding of the genetics of this disorder has provided a noninvasive approach to diagnosis. We report on a 3-year-old male patient with spinal muscular atrophy type II. He had progressive muscular weakness since 18 months of age. The upper arms were slightly, and the thighs moderately atrophic. There was muscle weakness of both the upper and lower limbs, being more proximal in distribution. Electromyogram revealed a neurogenic pattern.

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Growth Promoting Effects of Oriental Medicinal Drugs on Sciatic Nerve Regeneration in the Rat

  • Jo Hyun-Kyung;NamGung Uk;Seol In-Chan;Kim Yoon-Sik
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.6
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    • pp.1666-1672
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    • 2005
  • Oriental medicinal drugs have a broad spectrum of clinical use for the cure of nervous system diseases including brain ischemic damages or neuropathies. Yet, specific drugs or drug components used in the oriental medicine in relation to none fiber regeneration are not known. In the present study, possible growth promoting effects of oriental medicinal drugs were investigated in the injured sciatic nerve system in the rat. By immunofluorescence staining, we found that Jahageo (JHG, Hominis placenta) increased Induction levels of axonal growth associated protein GAP-43 in the rat sciatic none. Small growth promoting activity was found in Golsebo (GSB, Drynariae rhizoma) and Baikhasuo (BHSO, Polygoni multiflori radix) drugs. JHG also increased cell cycle protein Cdc2 levels in the injured area of the sciatic nerves. Immunofluorescence staining indicated that induced Cdc2 protein was mostly localized in the Schwann cells in the injury area, implying that JHG activity might be related to increased Schwann cell proliferation during axonal regeneration. Moreover, levels of phospho-extracellular signal-regulated (ERK) pathway in the injured neNes were elevated by JHG treatment while levels of total ERK were unaltered. In vivo measurement of axonal regeneration using retrograde tracer showed that JHG, GSB and BHSO significantly enhanced Dil-labeled regenerating motor neurons compared with saline control. The present data suggest that oriental medicinal drugs such as JHG, GSB, and BHSO may be a useful target for developing specific drugs of axonal regeneration.

The Study on the Eastern and Western Medical Literatures for Complex Regional Pain Syndrome (복합부위통증증후군에 대한 동서의학적 고찰)

  • Kim, Dong-Eun;Yu, Deok-Seon;Jung, Il-Min;Lee, Jeong-Han;Yeom, Seung-Ryong;Kwon, Young-Dal
    • Journal of Korean Medicine Rehabilitation
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    • v.19 no.2
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    • pp.157-185
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    • 2009
  • Objectives : The aim of this study is to suggest approach of oriental medical management and necessity by research of eastern and western medical literatures for Complex Regional Pain Syndrome(CRPS). Methods : We reviewed the clinical and experimental literatures of eastern and western concerned with CRPS which is related causation, signs and symptoms, diagnosis, etiology and management. Results : 1. CRPS is divided into type I and II by nerve injury. Two types of CRPS have been recognized: type I, corresponds to RSD and occurs without a definable nerve lesion, and type II, formerly called causalgia refers to cases where a definable nerve lesion is present. These conditions can be charaterized clinically by the sensory abnormalities, vascular abnormalities, oedema, sweating abnormalities, motor or trophic changes. 2. CRPS are well known to patients and physicians relatively, but the pathophysiology, causation and treatments are still unclear. 3. CRPS is needed to take the early diagnosis and multidisciplinary approach for significant effect. 4. CRPS can be regarded for obstruction syndrome of Ki and blood(痺證), blood stasis(瘀血), Wei symptom(痿證), numbness(痲木) in the oriental medical management of CRPS. Conclusions : Above the results, it is suggested that further studies and active approach of management of CRPS will be conducted precisely in oriental medicine.

Differences Between Facial Skin Temperature of the Paralyzed Side and Those of the Normal Side in Bell's Palsy Patients (Bell's Palsy 환자의 건측-환측 안면부 피부온도차이에 관한 연구)

  • Nam, Dong-Hyun;Koh, Hyung-Kyun;Park, Young-Bae
    • The Journal of Korean Medicine
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    • v.28 no.1 s.69
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    • pp.126-136
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    • 2007
  • Objectives : Bell's palsy in an acute peripheral facial nerve paralysis that usually affects only one side of the face. The seventh cranial nerve carries predominantly motor fibers, but also supplies some autonomic innervation, sensation to park of the ear, and taste to the anterior two thirds of the tongue. The aim of this study is to provide evidence of differences between facial skin temperature of the paralyzed side and normal side in Bell's palsy patients. Methods : the author studied 68 patients with Bell's palsy whose facial nerve function had been documented by the House-Brackmann grading system. We measured skin temperature of the forehead, zygoma, lower lip, temple and lower jaw area of the paralyzed side and those of the normal side. Results : there were significant facial skin temperature differences between the forehead area of paralyzed side and that of normal side of GrII(P<0.05) and III(P<0.05). The result also showed that the facial skin temperature difference according to the aflection period vanished when air temperature was calibrated (F=1.700, P=0.178). Conclusions : Thermography is a useful diagnostic tool in Bell's palsy if the air temperature is low enough to cool the facial skin temperature and the forehead area is evaluated as the sampling zone.

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Studies of the Central Neural Pathways to the Hapgok(LI4) and Large Intestine (합곡과 대장의 중추신경로와의 연계성에 관한 연구)

  • Lee, Chang-Hyun;Jeong, Han-Sol
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.25 no.2
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    • pp.217-226
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    • 2011
  • The aim of this study is to identify central neural pathway of neurons following the projection to the large intestine and Hapgok(LI4) which is Won acupoint of the large intestine meridian of hand-yangmyeong. In this experiment, Bartha's strain of pseudorabies virus was used to trace central localization of neurons related with large intestine and acupoint(LI4) which has been known to be able to regulate intestinal function. The animals were divided into 3 groups: group 1, injected into the large intestine; group 2, injected into the acupoint(LI4); group 3, injected into the acupoint(LI4) after severing the radial, ulnar, median nerve. After four days survival of rats, PRV labeled neurons were identified in the spinal cord and brain by immunohistochemical method. First-order PRV labeled neurons following the projection to large intestine, acupoint(LI4) and acupoint(LI4) after cutting nerve were found in the cervical, thoracic, lumbar and sacral spinal cord. Commonly labeled neurons were labeled in the lumbosacral spinal cord and thoracic spinal cord. They were found in lamina V- X, intermediomedial nucleus and dorsal column area. The area of sensory neurons projecting was L5-S2 spinal ganglia and T12-L1 spinal ganglia, respectively. In the brainstem, the neurons were labeled most evidently and consistently in the nucleus tractus solitarius, area postrema, dorsal motor nucleus of vagus nerve, reticular nucleus, raphe nuclei(obscurus, magnus and pallidus), C3 adrenalin cells, parapyramidal area(lateral paragigantocellular nucleus), locus coeruleus, subcoeruleus nucleus, A5 cell group, periaqueductal gray matter. In the diencephalon, PRV labeled neurons were marked mostly in the arcuate nucleus and median eminence. These results suggest that overlapped CNS locations are related with autonomic nuclei which regulate the functions of large intestine-related organs and it was revealed by tracing PRV labeled neurons projecting large intestine and related acupoint(LI4).

Pain perception and efficacy of local analgesia using 2% lignocaine, buffered lignocaine, and 4% articaine in pediatric dental procedures

  • Afsal, M.M;Khatri, Amit;Kalra, Namita;Tyagi, Rishi;Khandelwal, Deepak
    • Journal of Dental Anesthesia and Pain Medicine
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    • v.19 no.2
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    • pp.101-109
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    • 2019
  • Background: The purpose of this study was to compare the pain perception and anesthetic efficacy of 2% lignocaine with 1:200,000 epinephrine, buffered lignocaine, and 4% articaine with 1:200,000 epinephrine for the inferior alveolar nerve block. Methods: This was a double-blind crossover study involving 48 children aged 5-10 years, who received three inferior alveolar nerve block injections in three appointments scheduled one week apart from the next. Pain on injection was assessed using the Wong-Baker Faces pain scale and the sound eye motor scale (SEM). Efficacy of anesthesia was assessed by subjective (tingling or numbness of the lip, tongue, and corner of mouth) and objective signs (pain on probing). Results: Pain perception on injection assessed with Wong-Baker scale was significantly different between buffered lignocaine and lignocaine (P < 0.001) and between buffered lignocaine and articaine (P = 0.041). The onset of anesthesia was lowest for buffered lignocaine, with a statistically significant difference between buffered lignocaine and lignocaine (P < 0.001). Moreover, the efficacy of local analgesia assessed using objective signs was significantly different between buffered lignocaine and lignocaine (P < 0.001) and between lignocaine and articaine. Conclusion: Buffered lignocaine was the least painful and the most efficacious anesthetic agent during the inferior alveolar nerve block injection in 5-10-year-old patients.

Principles of Intraoperative Neurophysiological Monitoring with Insertion and Removal of Electrodes (수술 중 신경계감시검사에서 검사에 따른 전극의 삽입 및 제거방법)

  • Lim, Sung Hyuk;Park, Soon Bu;Moon, Dae Young;Kim, Jong Sik;Choi, Young Doo;Park, Sang Ku
    • Korean Journal of Clinical Laboratory Science
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    • v.51 no.4
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    • pp.453-461
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    • 2019
  • Intraoperative neurophysiological monitoring (INM) examination identifies the damage caused to the nervous system during surgery. This method is applied in various surgeries to validate the procedure being performed, and proceed with confidence. The assessment is conducted in an operating room, using subdermal needle electrodes to optimize the examination. There are no textbooks or guides for the correct stimuli and recording areas for the surgical laboratory test. This article provides a detailed description of the correct stimuli and recording parts in motor evoked potential (MEP), somatosensory evoked potential (SSEP), brainstem auditory evoked potentials (BAEP) and visual evoked potentials (VEP). Free-running Electromyography (EMG) is an observation of the EMG that occurs in the muscle, wherein the functional state of most cranial nerves and spinal nerve roots is determined. In order to help understand the test, an image depicting the inserting subdermal needle electrodes into each of the muscles, is attached. Furthermore, considering both the patient and the examiner, a safe method is suggested for removal of electrodes after conclusion of the test.

Effects of Aquatic Exercise on Hind-Limb Muscle and Recovery of Motor Function in the Ischemic Stroke Model of Rats (수중운동이 허혈성 뇌졸중 유발 백서의 하지근육 및 운동기능회복에 미치는 영향)

  • Kim, Gi-Do;Kim, Eun-Jung;Choi, Ki-Bok;Yoo, Young-Dae;Kim, Gye-Yeop
    • The Journal of Korean Physical Therapy
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    • v.18 no.3
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    • pp.59-70
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    • 2006
  • Purpose: This study is intended to examine the aquatic exercise on the improvement of muscle atrophy and motor function in an ischemic stroke model induced by middle cerebral artery occlusion. Methods: We used 60 Sprague-Dawely rats which were divided into 4 groups; the subjects were divided into group of 5 rats. Group I was a group of high dose aquatic exercise after inducing ischemic stroke; Group II was a group of low dose aquatic exercise after inducing ischemic stroke; Group III was a control group, Group IV was a sham group without ischemic stroke. Results: Muscle weight of gastrocnemius muscle was significantly difference in Group II compared to Group III on 8 weeks(p<0.05). For the changes in relative muscle weight of gastrocnemius muscle, there was significant increase in Group II compared to Group III on 8 weeks(p<0.05). For neurologic exercise behavior test, Group II generally had the highest score, compared to other groups. The results of behavior test that Group II improved in degeneration and inflammation of muscle fiber and decreased in destruction of nerve cells and cerebral infarction, indicating a similar state of muscle fiber and brain to Group III. Conclusion: Based on these results, aquatic exercise may improve muscle atrophy and contribute to the improvement of motor function.

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