• The Journal of Korean Physical Therapy
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• v.12 no.2
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• pp.107-119
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• 2000

This study is fulfilled from September 1st to December 31st in 1999 and the object of investigation are all 289 students belong to 5 universities managing amateur Ssirum team in Kyungnam, Kyungpook. Pusan and Seoul(158 people) and 6 high schools(131 people). And these results were derived from percentage and cross analysis of Person Chi-square test ann interview and 47 questioned paper based on this purpose of study. 1. There were no significant differences between high school students and university students in the comprehension of physical therapy and injury occurrence by technique. 2. According to the relation between satisfaction of life as a player and injured part, the injury of soft tissue ranked high among satisfied and unsatisfied people. and the satisfaction or unsatisfaction of practicing place also derived same result. 3. $46.8\%$ of Ssirum players got the injury of soft tissue during practice. the articular injury and bone injury in regular sequence. But there were no relations between the time of injury and the sort of injury. 4. There were no statistical differences ortho sort of injury by technique.(p=0.399). 5. According to the part of injury by using techniques, the injury of soft tissue ranked high$(50.0\%)$, articular injury ranked high$(42.6\%)$ in the leg technique, bone injury ranked high in the leg technique, and nerve injury ranked high in hand technique. 6. The injury of soft tissue ranked high during the practice$(46.8\%)$, practice on the purpose of a match$(50.0\%)$ and match$(41.7\%)$ but there were no relations between the time of injury and son of injury. 7. The part of injury by technique ranked high in the soft tissue$(50.0\%)$, articular injury by leg technique$(42.6\%)$, bone injury in leg and waist technique and nerve injury in hand technique high. 8. The time of injury ranked high during the practice$(65.7\%)$, and $66.1\%$ of injury occurred in the afternoon. 9. During the practice, the cold weather ie related on the rate of injury because $67\%$ of injury occurred in winter, but there are no statistical significance. 10. There were no relations between the satisfaction of place far practice and time of injury. 11. The particular part of injury occurred very much during the match between defense and offense. 12. In the relation between the degree of understanding of physical therapy and the experience of physical therapy, the people who know physical therapy had much experiences of physical therapy(p=.000) And independent of the physical therapy experiences, the effectiveness of physical therapy therapy to players was $48.8\%$, no idea was 42.65 and no effectiveness was $8.7\%$(p=.000). 13. $59.6\%$ of the people admitting the physical therapy effectiveness answered they would follow the order of the doctor and $56.6\%$ of the people not admitting the physical therapy effectiveness answered no.

• Journal of Acupuncture Research
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• v.28 no.3
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• pp.33-42
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• 2011

Objectives : This study was performed to evaluate the effects of Scutellariae radix (SR) water extract on locomotor dysfunction induced by spinal cord injury (SCI) in rats. Methods : SCI was induced mechanical contusion following laminectomy of 10 th thoracic vertebra in Sprague-Dawley rats. SR was orally given once a day for 7 days after SCI. Neurological behavior was examined with the Basso-Beattie-Bresnahan locomotor rating scale. Tissue damage and nerve fiber degeneration were examined with cresyl violet and luxol fast blue (LFB) histochemistry. Using immunohistochemistry, cellular damages to neurons and nerve fibers were examined MAP-2. Results : 1. SR significantly ameliorated the locomotor dysfunction of the SCI-induced rats. 2. SR significantly reduced the number of motor neurons in the ventral horn of the SCI-induced rat spinal cord. 3. SR attenuated the reduction of nerve fiber shirnakage and degeneration of the SCI-induced rat spinal cord. 4. SR attenuated the reduction of MAP-2 positive cells in the peri-lesion of the SCI-induced rat spinal cord. Conclusions : These results suggest that SR improves the locomotor dysfunction of SCI by reducing degeneration of nerve fibers and motor neuron shrinkage in the ventral horn.

• The Journal of the Korean bone and joint tumor society
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• v.6 no.2
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• pp.77-81
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• 2000

Malignant peripheral nerve sheath tumors(MPNSTs) are uncommon sarcomas that mostly arise in the soft tissue. They can develop from the pre-existing neurofibromas or schwannomas, or denovo from the peripheral nerves, or they can occur following the radiation therapy. We report a case of MPNST that developed in the sciatic nerve of the patient with neurofibromatosis type-1(NF-1). The patient was a 39-year-old man with the history of NF-1, who's main symptom was a rapidly enlarging painful mass in his posterior thigh. The well demarcated tumor, $6.5{\times}5{\times}4.5$cm in size, was composed of closely packed spindle cells. Since the patients with NF-1 have a high risk for developing a recurred MPNST, the importance of the clinical follow up is emphasized.

• Archives of Reconstructive Microsurgery
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• v.10 no.2
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• pp.131-136
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• 2001

Purpose : The sensory radial forearm flap is used to recover the soft tissue defect of hand and foot. The aim of this study is to evaluate the results after sensory reconstruction using sensate radial forearm flaps. Materials and Methods : There were 9 cases of 8 patients (6 males and 2 females). The 7 cases of 6 patients were donated to foot, the 2 cases of 2 patients to hand. At operation, the ages of them ranged from 18 to 63 years (mean: 37.9 years). Sensory evaluation was performed using percentage(%) of responding area to the pinprick test and the static and moving two-point discrimination test (s-2PD and m-2PD). Results : The mean percentage of responding area to the pin prick test was 48.5%. The mean s-2PD and m-2PD of recipient hands were 37.2 mm and 28.8 mm. The mean s-2PD and m-2PD of recipient feet were 46.7 mm and 45.0 mm. The mean s-2PD and m-2PD of controls were 23.5 mm and 19.7 mm. Conclusion : All the recipients were less sensitive than the control, but the recipient hands more sensitive than the recipient feet. Although the small numbers were studied, the results suggested that the recovery of sensation in the innervated flaps was influenced by the recipient nerve. So the donor nerve seems to be selected as more sensitive and more distal nerve of donor site for better outcome.

• The Journal of Korean Orthopaedic Ultrasound Society
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• v.1 no.1
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• pp.27-30
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• 2008

Snapping triceps syndrome is a rare condition in which a distal portion of triceps and ulnar nerve dislocate over the medial epicondyle as the elbow is flexed or extended from flexed position. Because it is frequently misdiagnosed as other elbow pathologies, accurate diagnosis is essential and imaging study is often needed to confirm the abnormal movement of ulnar nerve and triceps. Ultraonography is a convenient and effective method which is able to allow continual visualization of soft tissue movement compared to the other imaging modality including MRI. We reported one patient of snapping triceps syndrome who was diagnosed with the use of dynamic ultrasonography and treated with ulna nerve anterior transposition and repositioning of medial head of triceps. And we also provide the usefulness of musculoskeletal ultrasonography for the diagnosis of snapping triceps syndrome.

• Journal of Chest Surgery
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• v.30 no.7
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• pp.729-732
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• 1997

A case of chest wall malignant peripheral nerve sheath tumor(MPNST) was reported in the U.S.A by Mark and coworkers6)(1991), but none in korea. MPNST accounts for approximately 10% of all soft tissue sarcoma, mostly in patients between 20 and 50 years of age. MPNST arises in association with a major nerve trunk, including the sciatic nerve, brachial plexus, and sacral plexus and the most common anatomical site is the proximal portion of the upper and lower extremity and trunk. Surgical treatment is local excision of mass in low grade sarcoma but unblock resection is necessary in high grade sarcoma. We experienced multiple huge low grade MPNST on left chest wall of a 50 years old man. The tumor and invalved chest wall were removed, and the chest wall defect(15$\times$8 cm) was reconstructed with Teflon. Postoperative course was unevenful.

• The Journal of the Korean bone and joint tumor society
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• v.13 no.1
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• pp.55-59
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• 2007

Synovial chondroma is an uncommon benign lesion characterized by metaplastic cartilage formation within the synovial connective tissue, usually intraarticular, commonly affects the knee, hip and elbow. We would like to present the case of a 65-year-old man suffering from synovial chondroma of the right elbow responsible for radial nerve entrapment neuropathy. This is a case of synovial chondroma of the right elbow in an 65-year-old man presenting with pain and restricted joint movement of the right elbow, loss of extension and sensation of the right thumb and wrist. Plain radiographs showed narrowing of elbow joint space, bony spur on the edge of the joint, and radio-opaque sclerotic change of subchondral area. MRI revealed $16{\times}12$ mm sized round mass on the radial head, homogenous low signal on T1WI, heterogenous high and low signal on T2WI. The patient underwent marginal excision of the mass, compressing the radial nerve. Diagnosis was confirmed by histologic examination.

• Journal of the Korean Society of Radiology
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• v.14 no.6
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• pp.781-790
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• 2020

Tract-Based Spatial Statics (TBSS) after obtaining the image by examining a diffusion tensor image that can determine the presence or absence of damage to the cerebral white matter and gray matter for middle-aged men aged 30 to 50 with the starting age of drinking as a variable. As a result of measuring and analyzing the FA (fractional anisotropy) value of the brain gray matter region to the hippocampal region nerve fibers, the lower the alcohol start age in all regions, the lower the anisotropy measurement value, but the FA value was statistically significant. The study results indicated by the FA results measured in this study are that the earlier the drinking start age, the more severe the morphological changes in all neurological and anatomical brain regions in the hippocampal region of the brain gray matter and seriously affect the nerve fiber tissue. It can be said to harm and damage nerve fibers and affect functional morphological variations associated with alcohol.

• The Journal of Korean Medicine
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• v.31 no.1
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• pp.93-111
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• 2010

Objectives: The present study was performed to evaluate the potential effects of Bupleuri radix (SH) on regenerative activities in the peripheral sciatic nerve after crushing injury in rats. Methods: Axonal regeneration after crush injury in rats was analyzed by immunofluorescence staining using anti-NF-200 antibody and retrograde tracing of DiI-axons. Changes in protein levels in the sciatic nerve axons and DRG tissue were analyzed by Western blot analysis and immunofluorescence staining. Effects of SH extract treatment on neurite outgrowth was examined by immunofluorescence staining for cultured DRG neurons. Results: Major findings on the effects of SH extract treatment on axonal regeneration are summarized as follows. 1. SH-mediated enhancement in axonal regeneration was identified by immuno- fluorescence straining of NF-200 protein and retrograde tracing of DiI-labeled axons. 2. Axonal GAP-43 protein levels were upregulated by SH not only in the injured axons but also in the DRG sensory neurons corresponding to sciatic sensory axons. 3. Phospho-Erk1/2 protein levels were increased in both injured axonal area and DRG sensory neurons by SH. Phospho-Erk1/2 was also found in non-neuronal cells in the injured axons. 4. SH elevated levels of Cdc2 protein produced in Schwann cells in the distal portions of injured sciatic nerves. 5. The neurite outgrowth of DRG sensory neurons in culture was augmented by SH, and these changes were positively associated with GAP-43 production levels in the DRG neurons. Conclusions: These data suggest that SH extract improves the regenerative responses of injured peripheral neurons, and thus may be useful for understanding molecular basis for the development of therapeutic strategies.

• Clinics in Shoulder and Elbow
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• v.26 no.2
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• pp.131-139
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• 2023

Background: Massive rotator cuff tears (RCTs) are complicated by muscle atrophy, fibrosis, and intramuscular fatty degeneration, which are associated with postoperative tendon-to-bone healing failure and poor clinical outcomes. We evaluated muscle and enthesis changes in large tears with or without suprascapular nerve (SN) injury in a rat model. Methods: Sixty-two adult Sprague-Dawley rats were divided into SN injury (+) and SN injury (-) groups (n=31 each), comprising tendon (supraspinatus [SSP]/infraspinatus [ISP]) and nerve resection and tendon resection only cases, respectively. Muscle weight measurement, histological evaluation, and biomechanical testing were performed 4, 8, and 12 weeks postoperatively. Ultrastructural analysis with block face imaging was performed 8 weeks postoperatively. Results: SSP/ISP muscles in the SN injury (+) group appeared atrophic, with increased fatty tissue and decreased muscle weight, compared to those in the control and SN injury (-) groups. Immunoreactivity was only positive in the SN injury (+) group. Myofibril arrangement irregularity and mitochondrial swelling severity, along with number of fatty cells, were higher in the SN injury (+) group than in the SN injury (-) group. The bone-tendon junction enthesis was firm in the SN injury (-) group; this was atrophic and thinner in the SN injury (+) group, with decreased cell density and immature fibrocartilage. Mechanically, the tendon-bone insertion was significantly weaker in the SN injury (+) group than in the control and SN injury (+) groups. Conclusions: In clinical settings, SN injury may cause severe fatty changes and inhibition of postoperative tendon healing in large RCTs. Level of evidence: Level Basic research, controlled laboratory study.