• Title/Summary/Keyword: Vertebrae

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Impact Analysis of the Cervical Spin using a Finite Element Model (유한요소 모델을 이용한 충격력에 따른 경추부의 응답특성 해석)

  • 김영은;박덕용;이춘기
    • Transactions of the Korean Society of Automotive Engineers
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    • v.7 no.5
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    • pp.249-257
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    • 1999
  • A three dimensional finite model of a human neck has been developed in an effort to study the mechanics of cervical spin while subjected to vertical impact. This model consisting of the vertebrae from C1 through C7 including posterior element and ligaments was constructed by 2mm thick transverse CT cross-sections and X-ray film taken at lateral side. Geometrical nonlinearity was also considered for the large deformation on the disc. ABAQUS package was used for calculation and its results were verified comparing with responses of a model under static loading condition with published in-vitro experimental data. There were more cervical fracture in the restrained (compression) mode than in the nonrestrained (flexion-compression and extension-compression) mode. Upper cervical(C1-C2) injuries were observed under compression-extension modes, while lower cervical injuries occurred undjer compression-flexion modes. Posterior ligament distraction without bony damage at the upper cervical spin(C1-C2) were observed secondary to C5-C7 trauma in compression-flexion modes.

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A CASE REPORT OF BASAL CELL NEVUS SYNDROME (기저세포모반 증후군의 1례보고)

  • Ryu, Dong-Mok;Choi, Byung-Jun;Lee, Sang-Chull;Kim, Yeo-Gab;Lee, Baek-Soo
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.28 no.2
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    • pp.136-140
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    • 2002
  • Basal cell nevus syndrome is inherited as an autosomal dominant trait with variable expressivity. This syndrome comprises a number of abnormalities such as multiple nevoid basal cell carcinomas of the skin, skeletal abnormalities as bifid rib and fusion of vertebrae, central nervous system abnormalities as mental retardation, eye abnormalities, and multiple odontogenic kerato cysts. In 1960, Gorlin and Goltz first described the features of this disease as constituting a true syndrome; since then, it has been realized that it is much more complex and encompassing than initially thought. This patient has many symtoms of basal cell nevus syndrome. - we has known multiple jaw cysts through panorama and facial computed tomography. He has hyperchromatism on basal cell through skin biopsy. In ophthalmologic consult, he has blindness on right. On his past medical history, amputation was done on his toes for polyductalism. - So we report with literature reviews

Prediction of osteoporosis using fractal analysis on periapical and panoramic radiographs (치근단 및 파노라마 방사선사진에서 프랙탈 분석을 이용한 골다공증 예측)

  • Kim, Joo-Yeon;Jung, Yun-Hoa;Nah, Kyung-Soo
    • Imaging Science in Dentistry
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    • v.38 no.3
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    • pp.147-151
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    • 2008
  • Purpose : The purpose of this study was to investigate whether fractal analysis of periapical and panoramic radiographs was useful in predicting osteoporosis risk. Materials and Methods : 37 postmenoposal women between the age of 42 and 79 were classified as normal and osteoporosis group according to the bone mineral density of lumbar vertebrae and periapical and panoramic radio-graphs were taken. Fractal dimensions at periapical areas of mandibular first molars were calculated to differentiate the two groups. Results : The mean fractal dimensions of normal group on periapical and panoramic radiographs were $1.413{\pm}0.079$, $1.517{\pm}0.071$ each. The mean fractal dimensions of osteoporotic group on periapical and panoramic radiographs were $1.498{\pm}0.086$, $1.388{\pm}0.083$ each. The mean fractal dimension from peripaical radiographs of osteoporotic group was statistically significantly higher than that of normal group. The mean fractal dimension from panoramic radiographs of osteoporotic group was statistically significantly lower than that of normal group. Conclusion : Fractal analysis using periapical and panoramic radiographs was useful in predicting osteoporosis.

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A Case Report of Neck Pain Patient with Klippel-Feil Syndrome by Cervical Manipulation Treatment (Klippel-Feil 증후군 환자의 경추 도수치료 후 발생한 부작용 치험1례)

  • Lee, Jong-Ha;Kwon, Jeong-Gook;Keum, Dong-Ho
    • Journal of Korean Medicine Rehabilitation
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    • v.25 no.2
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    • pp.175-180
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    • 2015
  • The Klippel-Feil Syndrome (KFS) is characterized by congenital fusion of two or more vertebrae with hypermobile normal segment. According to this, a patient with KFS can be at risk of severe neurological symptoms after manipulation treatment. We had a KFS patient who suffered from neck pain and limited range of motion at cervical after manipulation treatment. The patient, 49-year-old woman was diagnosed as KFS through Cervical X-ray and MRI. The patient was treated by acupuncture therapy and SCENAR therapy. We measured neck pain by visual analog scale (VAS) and neck disability index (NDI) and checked range of motion at cervical before and after the treatments. After 8 times treatments, the patient's pain decreased and the range of motion increased. From this case, we can recognize the risk of Chuna manipulation treatment for KFS patient. So, we suggest that radiological examination is needed before cervical Chuna manipulation treatment to avoid adverse reactions.

The Effects on Flexion-Extension Craniocervical Joint by Proprioceptive Neuromuscular Facilitation with Hold-Relax Technique (고유수용성 신경근 촉진법 굴곡 신전 패턴이 두경부에 미치는 영향)

  • Jeon, Ho-Young;Jung, Hyun-Sung;Bae, Sung-Soo
    • PNF and Movement
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    • v.4 no.1
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    • pp.63-69
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    • 2006
  • Purpose : To identify the effects of Hold-Relax of proprioceptive neuromuscular facilitation (PNF) on the functional improvement of patients with neck myofascial pain syndrome. Methods : The present research investigated 30 patients with neck myofascial syndrome, dividing them into a group doing Hold-Relax of proprioceptive neuromuscular facilitation. This study examined degree of recovery from neck pain by comparing their neck myofascial pain syndrome before and after the treatment, and compared to find difference in the degree of recovery from myofascial pain syndrome. Results : The results are as follows. For the Hold-Relax of proprioceptive neuromuscular facilitation(PNF), the visual analogue scale(VAS) decreased significantly for six weeks treatment, and the range of motion(ROM) of cervical vertebrae increased significantly(p<.05). Conlusion : This study suggest that Hold-Relax of proprioceptive neuromuscular facilitation have an effect on the functional improvement of patients with neck myofascial pain syndrome.

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Clinical Experience of Management of Lower Leg Pain due to Chloroma of Lumbosacral Bone in Chronic Myelogenous Leukemia (만성골수성 백혈병 환자에서 발생한 요천추부 Chloroma로 인한 좌하지통증의 치료경험 1예 보고)

  • Sung, Choon-Ho;Chung, Woon-Hyok
    • The Korean Journal of Pain
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    • v.2 no.1
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    • pp.61-65
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    • 1989
  • Chloroma is a localized myeloblastic tumor which may develop during the course of myelogenous leukemia or as a presenting sign of the disease. A 47-year-old female diagnosed as chronic myelogenous leukemia in her hematologic remission period complained of left lower leg pain. The lumbar-spine series showed multiple osteolytic changes in the left lateral border of the lumbar spine. An inhomogenous soft tissue mass involving left lateral aspects of lumbar vertebrae was identified by CT-scanning. At the first pain attack, lumbar epidural steroid and local anesthetic injection could abolish her pain and the patient could go a few days without pain. The following radiation therapy could also improve the symptom and retain the pain free interval. One month later, a second pain attack occurred and lumbar and caudal epidural steroid and local anesthetic injections could result only in an incidental relief of pain. Radiation and chemotherapy were started but failed to relieve pain. A neurolytic block was considered but the patient's general condition was aggravated and even verbal communication with her became impossible.

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A Newly Designed Cervical Pillow Department of Rehabilitation Medicine (새로 디자인된 경부베개)

  • He, Jin-Gang
    • Journal of Korean Physical Therapy Science
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    • v.6 no.2
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    • pp.1063-1073
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    • 1999
  • Objective: Poor head and neck support during sleep can exacerbate the neck pain. Based on the ideal sleep posture and pillow suggested by Cyriax, we designed a new cervical pillow and compared the degree of pain reduction, quality of sleep and pillow satisfaction with a low hospital pillow and a high pillow. Method: The newly designed pillow has a built-in pressure-adjustable air bag in the cervical area and provides normal cervical lordotic curve in supine position and maintains cervical and thoracic vertebrae to form a horizontal line in side-lying position. Thiry-four patients with cervical pain used low hospital pillows for the first week of 3-week randomized crossover design study. They were subsequently randomly assigned to use each of the other two pillows for 1-week period. Outcomes were measured using Visual analog scale, Sleep questionaire, a pillow satisfaction scale. Result: Compared with other 2 types of pillow, Subjects using the newly desinged pillow showed much reduced pain intensity, increased duration of sleep and better satisfaction. Conclustion: We desinged a cervical pillow with built-in pressure adjustable air bag and it can significantly reduce pain intensity and improve quality of sleep in patients with cervical pain.

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Molecular Identification and Morphological Characteristics of the Longjaw Bonefish, Albula argentea Collected in Korea (한국산 여울멸의 분자동정과 형태적 특징)

  • Kim, Maeng Jin;Kim, Byeong Yeob;Song, Choon Bok
    • Korean Journal of Ichthyology
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    • v.31 no.4
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    • pp.249-254
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    • 2019
  • One specimen of Albula argentea (296.3 mm in standard length), belonging to the family Albulidae, was collected in a set net in the coastal waters of Jejudo Island, Korea. As the adult A. argentea has not been caught from Korean waters, we described its morphological characters based on the collected specimen and compared them with those of the previous reports on A. argentea and A. koreaus. As a result, the present specimen was characterized by having 68~73 pored lateral line scales (vs. 77~78 for A. koreana), 72~73 vertebrae pored lateral line scales (vs. 77~80) and none streak on the check (vs. yellowish streak). Molecular analysis using the mitochondrial cytochrome b DNA sequences was also conducted to confirm the correctness of species identification and taxonomic status of the sample.

Clinical study on deviation of upper cervical of patients with cervical syndrome (경추 증후군 환자에서 상부경추변위에 대한 임상적 고찰)

  • Cho, Meoung-Jae;Kim, Dong-Il;Park, Koae-Hwan
    • Journal of Acupuncture Research
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    • v.17 no.3
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    • pp.188-198
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    • 2000
  • Objectives : We perform this study for help to recovery of cervical syndrome by analyzing structural deviation and cervical curvature in upper cervical vertebrae and definiting functional change through cervical body heat change in cevical lesion which is estimated by DITI. Methods : From sep. 1st. 1998 to aug, 31th. 1999, I make an experiment with the 102 OPD patients of this hospital vertebral-joint center, which were judged as a cervical syndrome and confirmed in upper cervical deviation by motion palpation and then were taken cervical simple X-ray and cervical thermograpy. Results : In the classfication of upper cervical deviation, AS deviation took 98% and abnormal cervical curvature took 68%. in the Chief complain neck-shoulder pain took 78%. In the results of DITI, average value of all objects show $032{\pm}0.18$ as a meaning result. Conclusions : In medical treatment of cervical syndrome, this result shows necessity of keeping pace with remedy of upper cervical deviation and medical treatment of functional change and We can learn necessity of detailed assessment through continual clinical examination.

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Combination Therapy of Conventional and Korean Medicine for Multiple Vertebral Compression Fractures Associated with Postpartum Osteoporosis: A Case Report

  • Lee, Ki-Beom;Yang, Kyu-Jin;Gi, Yu-Mi;Kim, Tae-Gyu;Jo, Hooin;Choi, Jongho
    • Journal of Acupuncture Research
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    • v.35 no.4
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    • pp.244-247
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    • 2018
  • Multiple vertebral compression fractures are a rare condition and are a serious consequence of postpartum osteoporosis. This report describes the case of a 35-year-old woman who had given birth to her first child 2 months before the onset of pain. Magnetic resonance imaging showed compression fractures of 7 vertebrae. The patient was treated with both conventional, and Korean medicine methods including acupuncture and herbal prescriptions. The patient's progress was assessed using self-reported symptoms, scale scores and laboratory test results. Her pain was gradually alleviated and biochemical inflammation marker levels improved, but her functional status remained severely impaired. Clinical practitioners who treat women in the postpartum period must be aware of osteoporosis and potential vertebral fractures and need to consider Korean medicine as an alternative therapy to help such patients.