• 대한정형도수물리치료학회지
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• 제11권2호
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• pp.62-70
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• 2005

The determination of peripheral nerve conduction velocity is an important part to electrodiagnosis. Its value as neurophysiologic investigative procedure has been known for many years but normal value of median and ulnar motor nerve was poorly reported in Korea. To evaluate of median and ulnar motor nerve terminal latency, amplitude of CMAP(compound muscle action potential), conduction velocity and F-wave latency for obtain clinically useful reference value. 71 normal volunteers(age, 19-65 years; 142 hands) examined who has no history of peripheral neuropathy, diabetic mellitus, chronic renal failure, endocrine disorders, anti-cancer medicine, anti-tubercle medicine, alcoholism, trauma, radiculopathy. Nicolet Viking II was use for detected terminal latency, amplitude of CMAP, conduction velocity and F-wave latency of median and ulnar motor nerve. Data analysis was performed using SPSS. Descriptive analysis was used for obtain mean and standard deviation, independent t-test was used to compare between Rt and Lt side also compare between different in genders. The results are summarized as follows: 1. Median motor nerve terminal latency was right 3.00ms, left 2.99ms and there was no significantly differences between right and left side and genders. 2. Median motor nerve amplitude of CMAP was right 17.26mV, left 1750mV and there was no significantly differences between right and left side and genders. 3. Median motor nerve conduction velocity was right 57.89m/sec, left 58.03m/sec and there was no significantly differences between right and left side and genders. 4. Median motor nerve F-wave latency was right 25.74ms, left 25.59ms and there was significantly differences between genders. 5. Ulnar motor nerve terminal latency was right 2.38ms, left 2.45ms and there was significantly differences between right and left side. 6. Ulnar motor nerve amplitude of CMAP was right 15.99mV, left 16.02mV and there was no significantly differences between right and left side and genders. 7. Ulnar motor nerve conduction velocity was right 60.35m/sec, left 59.73m/sec and there was no significantly differences between right and left side and genders. 8. Ulnar motor nerve F-wave latency was right 25.53ms, left 25.57ms and there was significantly differences between genders.

• Archives of Reconstructive Microsurgery
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• 제23권2호
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• pp.86-88
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• 2014

A schwannoma is a benign soft tissue tumor arising from the nerve sheath of a Schwann cell. Clinically, a schwannoma is an asymptomatic mass rarely causing neurologic deficits. However, it can cause discomfort as well as motor and sensory disturbances by compressing the nerve of its origin. The authors encountered a huge schwannoma arising from the median nerve at the proximal forearm, which caused symptoms mainly in the ulnar nerve. The tingling sensation along the ulnar nerve disappeared completely after enucleation of the schwannoma originating from the median nerve.

• Archives of Plastic Surgery
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• 제37권1호
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• pp.95-98
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• 2010

Purpose: One of the most common cause of upper extremity lymphedema is breast cancer surgery. We experienced the nerve entrapment syndrome which was associated with postmastectomy lymphedema. To the best of our knowledge, this is the first case report of lymphedema induced nerve entrapment syndrome on upper extremity in Korea. Methods: A 54-year-old woman presented with a tingling sensation on her right hand, which had been present for 1 year. On her history, she had a postmastectomy lymphedema on her right upper extremity for 20 years. Initial electromyography (EMG) showed that the ampulitude of the median, ulnar, and dorsal ulnar cutaneous nerve were decreased, and conduction block was also seen in median nerve across the wrist. In needle EMG, incomplete interference patterns were observed in the muscles innervated by median and ulnar nerves. In conclusion, electrophysiologic study and clinical findings suggested right median and ulnar neuropathy below the elbow. Therefore, we performed surgical procedures, which were release of carpal tunnel, Guyon's canal, and cubital tunnel. Results: The postoperative course was uneventful until the first two years. The tingling sensation and claw hand deformity were improved, however, the motor function decreased progressively. In 7 years after the operation, patient could not flex her wrist and thumb sufficiently. EMG which was performed recently showed that ulnar motor response was of low ampulitude. Moreover, median, ulnar, dorsal ulnar cutaneous, lateral antecubital cutaneous and median antebrachial cutaneous sensory response were unobtainable. Abnormal spontaneous activities were observed in upper arm muscles. In conclusion, multiple neuropathies were eventually developed at above elbow level. Conclusion: On treating nerve entrapments associated with lymphedema, medical professionals should be fully aware of the possibility of unpredictable results after the surgery, because of the pathophysiologic traits of chronic lymphedema.

• Clinics in Shoulder and Elbow
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• 제3권1호
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• pp.54-60
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• 2000

As a surgical treatment of ulnar nerve entrapment syndrome includes simple decompression, medial epicondylectomy, and anterior transposition of the ulnar nerve into a subcutaneous or submuscular bed have been widely used. Despite many reports of these surgical procedure, there is little to guide the choice of one surgical technique. The purpose of our study is to analyse clinical and electrodiagnostic result after minimal invasive decompression by decompression and medial epicondyloplasty(deepening of ulnar groove). We have experienced 9 cases of ulnar nerve entrapment syndrome who were treated with decompression and medial epicondyloplasty. Male were five and female were four. The mean age at operation was 36 years ranging from 23 to 47 years. Operative procedure was to incise the medial intermuscular septum and aponeurotic arch of flexor carpiulnaris and to deepen the ulnar groove. Patients are allowed to do range of motion(ROM) exercise on the average 5days. All patient were relieved pain and improved motor and sensory function, and this procedure allows early ROM exercise after operation because the muscle have not been detached.

• Journal of Korean Neurosurgical Society
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• 제42권2호
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• pp.141-144
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• 2007

The association of medial elbow ganglion cyst with cubital tunnel syndrome has been rarely reported. A 61-year-old man presented with progressive right hypothenar atrophy and paresthesia for 7 months. Ultrasonography and magnetic resonance imaging revealed ulnar nerve entrapment with a cystic ganglion in cubital tunnel. Decompression of ulnar nerve and excision of the ganglion were performed. Motor function of the ulnar nerve showed an improvement four months later after surgery. Because most ganglia are occult, imaging study is warranted especially in case with osteoarthritis. Excision of the ganglion performed concurrently with decompression of the ulnar nerve provide satisfactory results.

• The Korean Journal of Pain
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• 제29권1호
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• pp.18-22
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• 2016

Background: The interscalene brachial plexus block is widely used for pain control and anesthetic purposes during shoulder arthroscopic surgeries and surgeries of the upper extremities. However, it is known that interscalene brachial plexus block is not appropriate for upper limb surgeries because it does not affect the lower trunk (C8-T1, ulnar nerve) of the brachial plexus. Methods: A low approach, ultrasound-guided interscalene brachial plexus block (LISB) was performed on twenty-eight patients undergoing surgery of the upper extremities. The patients were assessed five minutes and fifteen minutes after the block for the degree of block in each nerve and muscle as well as for any complications. Results: At five minutes and fifteen minutes after the performance of the block, the degree of the block in the ulnar nerve was found to be $2.8{\pm}2.6$ and $1.1{\pm}1.8$, respectively, based on a ten-point scale. Motor block occurred in the median nerve after fifteen minutes in 26 of the 28 patients (92.8%), and in all of the other three nerves in all 28 patients. None of the patients received additional analgesics, and none experienced complications. Conclusions: The present study confirmed the achievement of an appropriate sensory and motor block in the upper extremities, including the ulnar nerve, fifteen minutes after LISB, with no complications.

• 한국산학기술학회논문지
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• 제18권10호
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• pp.290-298
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• 2017

본 연구는 초기 손목터널증후군으로 진단된 환자의 정중신경(median nerve)과 자신경(ulnar never)의 및 F파를 대조군과 비교 분석하여 초기 손목터널증후군의 진단에서 F파가 유용한 지표가 될 수 있는지 알아보고자 하였다. 신경전도검사 결과의 주요 지표인 말단잠복기, 말단진폭, 손바닥-손목 구간의 감각신경전도속도 및 F파 잠복기를 대조군과 t-test 검정으로 비교분석하고, 또한 주요 지표간의 상관성 분석을 위하여 상관분석을 실시하였다. 연구결과, 대조군과 초기 손목터널증후군 환자의 정중신경 말단잠복기 비교에서 두 군 간에 유의성이 높은 것으로 나타났다(p<0.001). 정중신경의 감각신경전도속도 비교에서는 대조군과 손목터널증후군 간의 유의성이 높은 것으로 관찰되었다(p<0.001). 후기반응검사인 F파 잠복기 분석에서 정중신경의 경우 대조군과 손목터널증후군간 높은 유의성(p<0.001)을 보였으나, 자신경의 경우는 차이가 없는 것으로 나타났다. 상관분석 결과는 감각신경전도속도와 말단잠복기, F파와 말단잠복기에서 모두 상관성이 있는 것으로 나타났다. 이러한 결과로, F파는 말단잠복기, 감각신경전도속도와 같이 손목터널증후군의 진단에 있어 유용한 지표가 될 수 있다고 사료된다.

• Journal of Korean Neurosurgical Society
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• 제42권5호
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• pp.382-387
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• 2007

Objective : Cubital tunnel syndrome is the second most common entrapment neuropathy of the upper extremity. Although many different operative techniques have been introduced, none of them have been proven superior to others. Simple cubital tunnel decompression has numerous advantages, including simplicity and safety. We present our experience of treating cubital tunnel syndrome with simple decompression in 15 patients. Methods : According to Dellon's criteria, one patient was classified as grade 1, eight as grade 2, and six as grade 3. Preoperative electrodiagnostic studies were performed in all patients and 7 of them were rechecked postoperatively. Five patients of 15 underwent simple decompression using a small skin incision (2 cm or less). Results : Preoperative mean value of motor conduction velocity (MCV) within the segment (above the elbow-below the elbow) was $41.8{\pm}15.2\;m/s$ and this result showed a decrease compared to the result of MCV in the below the elbow-wrist segment ($57.8{\pm}6.9\;m/s$) with statistical significance (p<0.05). Postoperative mean values of MCV were improved in 6 of 7 patients from $39.8{\pm}12.1\;m/s$ to $47.8{\pm}12.1\;m/s$ (p<0.05). After an average follow-up of $4.8{\pm}5.3$ months, 14 patients of 15 (93%) reported good or excellent clinical outcomes according to a modified Bishop scoring system. Five patients who had been treated using a small skin incision achieved good or excellent outcomes. There were no complications, recurrences, or subluxation of the ulnar nerve. Conclusion : Simple decompression of the ulnar nerve is an effective and successful minimally invasive technique for patients with cubital tunnel syndrome.

• Clinical Pain
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• 제19권2호
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• pp.97-100
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• 2020

An intraneural ganglion in the peripheral nerve and the resulting ulnar neuropathy at the elbow are uncommon and may show various symptoms ranging from local pain to motor and sensory impairment. We report a case of a 76-year-old man who was diagnosed with ulnar neuropathy caused by an intraneural ganglion derived from the elbow. We also discuss the pathophysiology, treatment, prognosis, and diagnostic value of ultrasonography in neuropathy caused by a ganglion.

• 대한예방의학회:학술대회논문집
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• 대한예방의학회 1994년도 교수 연수회(환경)
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• pp.545-548
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• 1994

Eletrophysiological methods revealed subclinical neuropathy in 26 workers, exposed from 1 to 17 years to lead and whose blood lead (PbB) values had never exceeded $70{\mu}g/100\;ml$, as ascertained by checking the monitor reports of the factory and by careful exposure history. The PbB determinations had been tested repostedly and had been found valid. The main findings were slowing of the maximal motor conduction velocities of the median and ulnar nerves and particularly the conduction velocity of the slower fibers of the ulnar nerve. Eletrophysiological abnormalities comprised fibriliations, diminution of the number of motor units on maximal contraction, and an abnormal. Thus, a dose-response relationship exlets on a group basis. Since the regular monitoring of PbBs in most workers during their entire period of exposure excludes the possibility of a body burden out of proportion to the PbBs silght neuro-logical damage is produced at exposures hitherto regarded as quite sale.