• Annals of Clinical Neurophysiology
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• 제9권1호
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• pp.33-35
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• 2007

Meralgia paresthetica (MP) is a benign entrapment neuropathy which is characterized by sensory impairment and paresthesia in the cutaneous distribution of the lateral femoral cutaneous nerve. A 79-year-old woman presented with intermittent right inguinal burning sensation. The sensory nerve conduction study (NCS) showed decreased right side sensory nerve action potential (SNAP) on lateral femoral cutaneous nerve compared to the contralateral one. Abdomino-pelvic CT showed bilateral huge renal cysts (The size of largest one on right side: about $6.2{\times}5.0cm$). We report a case of MP caused by a huge abdominal renal cyst, which should be considered when conventional examination reveals no responsible etiology.

• The Korean Journal of Pain
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• 제32권3호
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• pp.147-159
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• 2019

Lumbar foraminal pathology causing entrapment of neurovascular contents and radicular symptoms are commonly associated with foraminal stenosis. Foraminal neuropathy can also be derived from inflammation of the neighboring lateral recess or extraforaminal spaces. Conservative and interventional therapies have been used for the treatment of foraminal inflammation, fibrotic adhesion, and pain. This update reviews the anatomy, pathophysiology, clinical presentation, diagnosis, and current treatment options of foraminal neuropathy.

• 대한골관절종양학회지
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• 제9권2호
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• pp.212-216
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• 2003

결절종으로 인한 총 비골 신경 마비는 매우 드문 예에서 보고되고 있지만, 잘 알려져 있는 질환이다. 결절종으로 인한 비골 신경 포착을 보이는 자기 공명 영상 소견에 대하여 3편이 보고되어 있다. 본 증례에서는 진단을 위해 초음파, 자기 공명 영상, 근전도, 신경전도 검사 및 조직 검사를 시행하였다. 비골 경부 주변의 관상 구조는 자기 공명 영상 소견 상 특징적으로 T2 강조영상에서 고신호를 보이면서 상부 경비골 관절의 아래 부분까지 종축으로 뻗어있는 소견을 보였다. 비골 신경을 노출시키고 결절종에 대해 병소내 절제술을 시행하였다. 수술 후에도 마비 증상이 지속되었으나, 수술 후 4개월부터 점차적으로 마비의 회복소견을 보이기 시작했고 술 후 7개월에 완전한 회복을 보였다. 본 증례에서 자기 공명 영상은 낭종의 범위, 위치, 기원을 밝혀 내는데 도움을 주었고, 외과적 절제술로 좋은 결과를 얻을 수 있다.

• The Korean Journal of Pain
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• 제5권2호
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• pp.249-257
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• 1992

It is general knowledge that knee joint pain can be attributed to trauma and degenerative change around the knee joint. However most patients who have suffered from pain or limited range of motion of the knee joint show no definite pathology on X-ray or laboratory examination. We examined 242 patients with knee joint pain and found compression or entrapment of the articular nerve fiber by the tissue around the knee joint resulted in pain in almost all cases. Conclusion: by relieving the compression of the articular nerve fiber with just physical therapy and LASER stimulation on the identified trigger points, in conjunction with NSAIDs, muscle relaxants, were found to be very effective in the treatment of knee joint pain.

• The Korean Journal of Pain
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• 제31권3호
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• pp.215-220
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• 2018

Meralgia paresthetica (MP) is a sensory mononeuropathy, caused by compression of the lateral femoral cutaneous nerve (LFCN) of thigh. Patients refractory to conservative management are treated with various interventional procedures. We report the first use of extended duration (8 minutes) pulsed radiofrequency of the LFCN in a case series of five patients with refractory MP. Four patients had follow up for 1-2 years, and one had 6 months follow up. All patients reported remarkable and long lasting symptom relief and an increase in daily life activities. Three patients came off medications and two patients required minimal doses of neuropathic medications. No complications were observed.

• Annals of Clinical Neurophysiology
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• 제9권1호
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• pp.23-25
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• 2007

The symptomatology of suprascapular neuropathy is variable, depending principally on the etiology and location of the lesion. Among them, suprascapular nerve entrapment with isolated paralysis of the infraspinatus muscle is uncommon. We report a 27-year-old man presenting with right arm weakness. Based on the electrophysiologic and imaging findings, suprascapular neuropathy at the spinoglenoid notch due to cystic mass lesion was diagnosed.

• 대한정형외과스포츠의학회지
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• 제5권2호
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• pp.100-104
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• 2006

서혜부 손상은 축구 손상의 약 10% 정도를 차지하고 있다. 이런 손상은 경기 중 컷팅이나, 사이드 스텝, 가속, 감속, 급격한 방향 전환 등의 긴장력이 서혜부에 가해질 때 발생 할 수 있다. 증상 또한 다양해서, 수일 내에 복귀 할 수도 있으나 동통이 심해져서 운동을 포기해야 할 경우까지 있다. 또한, 어느 한 질환에 국한된 것이 아니기 때문에 서혜부에 동통이 발생할 경우 여러가지 질환을 염두에 두어야 하며, 흔한 손상으로는 서혜부 주변의 근육 및 인대 손상이며 그 외에 신경압박 증상(nerve entrapment), 탈장(hernia), 복부 근육 약화(sportsman's hernia), 치골유합부염(symphysitis), 피로골절 (stress fracure) 및 고관절 질환 등을 들 수 있다.

• Annals of Clinical Neurophysiology
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• 제4권1호
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• pp.34-37
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• 2002

Background : The term "mononeuropathy multiplex" means simultaneous or sequential involvement of individual noncontiguous nerve trunks, evolving over days to years. The aim of this study was to delineate the causes, clinical features, and detailed electrophysiological findings in the patients with mononeuropathy multiplex. Methods : We analyzed the medical records of 22 patients with mononeuropathy multiplex confirmed on electrophysiological studies in Inje University Seoul Paik Hospital, Seoul Municipal Boramae Hospital, and Seoul National University Hospital between 1991 to 2000. Results : The number of male and female patients was equal. The mean age was 48 years with a peak incidence in the sixth decade. The etiology could be divided into vasculitis(11 patients) or non-vasculitis group. In vasculitis group, Churg-Strauss syndrome, polyarteritis nodosa, and rheumatoid arthritis were included. The non-vasculitis group included diabetes mellitus, leprosy, and Guillain-Barre syndrome. Ulnar and median nerves were most commonly involved(91%). In descending order of frequency, peroneal, posterior tibial, sural, and radial nerves were also involved. Bilateral involvement occurred most commonly in ulnar nerve. The symptoms and signs of mononeuropathy multiplex were the initial manifestations in 12 patients(55%), which was more frequent in vasculitis group(73%). Nerve conduction abnormalities could be divided into axonal, demyelinating, or mixed type. Most(91%) of the patients in vasculitis group revealed axonal type abnormalities. The location of the nerve lesion was frequently related to potential site of entrapment in demyelinating type. Conclusions : Mononeuropathy multiplex is the presenting features of the etiological disease frequently, especially in vasculitis group. Nerve conduction studies(NCS) reveals not only axonal type but also demyelinating type abnormalities. The etiological diseases were different in each type. Therefore, NCS is very helpful for the early etiological diagnosis and therapeutic implication in the patients with mononeuropathy multiplex.

• Journal of Korean Neurosurgical Society
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• 제53권5호
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• pp.269-273
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• 2013

Objective : Posture induced common peroneal nerve (CPN) palsy is usually produced during the prolonged squatting or habitual leg crossing while seated, especially in Asian culture and is manifested by the onset of foot drop. Because of its similarity to discogenic foot drop, patients may be diagnosed with a lumbar disc disorder, and in some patients, surgeons may perform unnecessary examinations and even spine surgery. The purpose of our study is to establish the clinical characteristics and diagnostic assessment of posture induced CPN palsy. Methods : From June 2008 to June 2012, a retrospective study was performed on 26 patients diagnosed with peroneal nerve palsy in neurophysiologic study among patients experiencing foot drop after maintaining a certain posture for a long time. Results : The inducing postures were squatting (14 patients), sitting cross-legged (6 patients), lying down (4 patients), walking and driving. The mean prolonged neural injury time was 124.2 minutes. The most common clinical presentation was foot drop and the most affected sensory area was dorsum of the foot with tingling sensation (14 patients), numbness (8 patients), and burning sensation (4 patients). The clinical improvement began after a mean 6 weeks, which is not related to neural injury times. Electrophysiology evaluation was performed after 2 weeks later and showed delayed CPN nerve conduction study (NCS) in 24 patients and deep peroneal nerve in 2 patients. Conclusion : We suggest that an awareness of these clinical characteristics and diagnostic assessment methods may help clinicians make a diagnosis of posture induced CPN palsy and preclude unnecessary studies or inappropriate treatment in foot drop patients.

• Journal of Korean Neurosurgical Society
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• 제30권9호
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• pp.1120-1126
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• 2001

Objective : The development of magnetic resonance neurography(MRN) has made it possible to produce highresolution images of peripheral nerves themselves, as well as associated intraneural and extraneural lesions. We evaluated the clinical application and utility of high-resolution MRN techniques for the diagnosis and treatment of a variety of peripheral nerve disorder(PND)s. Material and Method : MRN images were obtained using T1-weighted spin echo, T2-weighted fast spin echo with fat suppression, and short tau inversion recovery(STIR) fast spin-echo pulse sequences. Fifteen patients were studied, three with brachial plexus tumors, five with chronic entrapment syndromes, and seven with traumatic peripheral lesions. Ten patients underwent surgery. Results : In MRN with STIR sequences of axial and coronal imagings, signals of the peripheral nerves with various lesions were detected as fairly bright signals and were discerned from signals of the uninvolved nerves. Increased signal with proximal swelling and distal flattening of the median nerve were seen in all patients of carpal tunnel syndrome. Among the eight patients with brachial plexus injury or tumors, T2-weighted MRN showed increased signal intensity in involved roots in five, enhanced mass lesions in three, and traumatic pseudomeningocele in three. Other associated MRI findings were adjacent bony signal change, neuroma, root adhesion and denervated muscle atophy with signal change. Conclusion : MRN with high-resolution imaging can be useful in the preoperative evaluation and surgical planning in patients with peripheral nerve lesions.