• 대한인간공학회지
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• 제18권3호
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• pp.13-26
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• 1999

126 male and 95 female Korean college students were examined for Scoliosis by using Moire type body observation apparatus. Scoliotic hump measuring instrument, and spinal cord side curvature condition measuring instrument. The prevalence rate of Scoliosis along with identifying its possible causal factors and characteristics were investigated. The results revealed that 5.56% of male and 8.42% of female students(male to female ratio 1:1.47) were suspected as having Scoliosis. There was a significant correlation between the students who have symptoms of Scoliosis and their physiological measurements(e.g., lower breathing capacity of the lungs). There were also close relationships between the suspected cases and their habits(e.g., poor sitting and sleeping posture). It is concluded that the Scoliosis in Korean college students should not be ignored.

• 척추신경추나의학회지
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• 제2권2호
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• pp.1-16
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• 2007

Objectives : The purpose of this study was to identify spinal curvatures, plantar pressure and foot angles in a walking. Methods : 19 outpatients under 19 years old were included. Plantar pressure and foot angle in a walking were measured by using Gaitview AFA-50. Spinal curvatures were measured by using radiograph. Results : The cervical lordotic angle is significantly difference with left and right plantar pressure(p=0.027). The thoracic kyphotic angle is significantly difference with left and right plantar pressure(p=0.026). Cobb's angle is significantly difference with left and right plantar pressure(p=0.027). The other plantar pressure were no difference from spinal curvatures and foot angle in a walking. Conclusion : There were no correlation between plantar pressure, spinal curvatures and foot angle. We consider that needed more additional study.

• Journal of Korean Neurosurgical Society
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• 제56권3호
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• pp.206-210
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• 2014

Objective : Lumbar spinal stenosis is a common degenerative spine disease that requires surgical intervention. Currently, there is interest in minimally invasive surgery and various technical modifications of decompressive lumbar laminectomy without fusion. The purpose of this study was to present the author's surgical technique and results for decompression of spinal stenosis. Methods : The author performed surgery in 57 patients with lumbar spinal stenosis between 2006 and 2010. Data were gathered retrospectively via outpatient interviews and telephone questionnaires. The operation used in this study was named central decompressive laminoplasty (CDL), which allows thorough decompression of the lumbar spinal canal and proximal two foraminal nerve roots by undercutting the lamina and facet joint. Kyphotic prone positioning on elevated curvature of the frame or occasional use of an interlaminar spreader enables sufficient interlaminar working space. Pain was measured with a visual analogue scale (VAS). Surgical outcome was analyzed with the Oswestry Disability Index (ODI). Data were analyzed preoperatively and six months postoperatively. Results : The interlaminar window provided by this technique allowed for unhindered access to the central canal, lateral recess, and upper/lower foraminal zone, with near-total sparing of the facet joint. The VAS scores and ODI were significantly improved at six-month follow-up compared to preoperative levels (p<0.001, respectively). Excellent pain relief (>75% of initial VAS score) of back/buttock and leg was observed in 75.0% and 76.2% of patients, respectively. Conclusion : CDL is easily applied, allows good field visualization and decompression, maintains stability by sparing ligament and bony structures, and shows excellent early surgical results.

• Journal of Korean Neurosurgical Society
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• 제61권2호
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• pp.224-232
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• 2018

Objective : Cervical ossification of the posterior longitudinal ligament (OPLL) can be treated via anterior or posterior approach, or both. The optimal approach depends on the characteristics of OPLL and cervical curvature. Although most patients can be successfully treated by a single surgery with the proper approach, renewed or newly developed neurological deterioration often requires repeat surgery. Methods : Twenty-seven patients with renewed or newly developed neurological deterioration requiring salvage surgery for multi-segment cervical OPLL were enrolled. Ten patients (group AP) underwent anterior approach, and 17 patients (group PA) underwent posterior approach at the initial surgery. Clinical and radiological data from initial and repeat surgeries were obtained and analyzed retrospectively. Results : The intervals between the initial and repeat surgeries were $102.80{\pm}60.08months$ (group AP) and $61.00{\pm}8.16months$ (group PA) (p<0.05). In group AP, the main OPLL lesions were removed during the initial surgery. There was a tendency that the site of main OPLL lesions causing renewed or newly developed neurological deterioration were different from that of the initial surgery (8/10, p<0.05). Repeat surgery was performed for progressed OPLL lesions at another segment as the main pathology. In group PA, the main OPLL lesions at the initial surgery continued as the main pathology for repeat surgery. Progression of kyphosis in the cervical curvature (Cobb's angle on C2-7 and segmental angle on the main OPLL lesion) was noted between the initial and repeat surgeries. Group PA showed more kyphotic cervical curvature compared to group AP at the time of repeat surgery (p<0.05). Conclusion : The reasons for repeat surgery depend on the type of initial surgery. The main factors leading to repeat surgery are progression of remnant OPLL at a different segment in group AP and kyphotic change of the cervical curvature in group PA.

• 대한의용생체공학회:의공학회지
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• 제25권3호
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• pp.171-182
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• 2004

본 연구에서는 의료 영상과 유한요소 해석을 이용하여 골절된 척추체의 치료를 위해 골 시멘트를 주입하는 추체 성형술(vertebroplasty)에 영향을 미치는 여러 인자들에 대해 생체 역학적으로 분석하여 평가하고자 하였다. 의료 영상을 통해 구현된 모델들은 분석하고자 하는 인자에 대하여 크게 단분절과 다분절 유한요소 모델의 2 가지 형태로 구분하였다. 단분절 유한요소 모델을 통해 골다공증의 정도, 주입된 골 시멘트의 양, 골 시멘트의 주입량 및 환자에게 주입된 골 시멘트 양의 적절성을 평가하였으며, 골 시멘트의 주입이 척추체의 구조적 안정성에 미치는 효과를 분석하기 위하여 척추체 상종판에 수직 압축하중을 가하여 이때의 최대 수진 변위량을 분석하였다. 또한 단분절 척추체의 강성도(stiffness) 값을 산출한 뒤, 정상 상태의 척추체의 강성도 값으로 정규화 하였다. 다분절 유한요소 모델의 경우, 압박 골절 상태를 적용하여 척추 만곡의 변화가 인체에 미치는 영향을 분석하기 위하여 골절의 정도를 3 가지로 구현하였으며, 모델의 최상부에 압축 하중을 가한 후의 척추 만곡의 변화 정도를 분석하였다. 추체 성형술에 대한 다양한 인자들에 대한 분석 결과, 추체 성형술을 통해 환자의 골밀도가 상대적으로 높은 경우(BMD 50mg/$m\ell$이상)와 환자의 척추체 망상골 부피의 약 15%에 해당하는 골 시멘트 주입 시 가장 큰 척추체의 구조적 안정성의 증가 효과를 가져올 것으로 예측되었다. 또한 척추 골절이 미치는 영향에 대한 분석 결과, -2.8$^{\circ}$의 정상적인 후만곡을 가지는 T12∼L2 운동 분절이 골절의 모델링 후 약 9∼17$^{\circ}$의 큰 전만곡을 가지게 되었으며 이러한 척추 만곡의 변화는 동일한 하중 하에서 급격한 척추 만곡의 변화를 야기하는 것으로 나타났다. 또한 골절의 정도가 심할수록 척추 변형은 더욱 크게 증가하는 것으로 나타났다. 이러한 연구 결과들로부터, 전반적으로 추체 성형술은 골 시멘트의 주입량 또는 골밀도에 상관없이 약화된 척추체의 자체의 구조적 안정성의 증가 효과를 가져왔으며 골절로 인해 추체의 높이가 손상되었을 경우 이를 회복하는 것이 중요한 인자의 하나임을 나타내는 결과로 사료되어진다.

• 대한수학회보
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• 제60권1호
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• pp.225-235
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• 2023

We show that metric bisectors with respect to the Korányi metric in the Heisenberg group are spinal spheres and vice versa. We also calculate explicitly their horizontal mean curvature.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2009년도 정보 및 제어 심포지움 논문집
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• pp.141-144
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• 2009

The purpose of this study is to develop the auxiliary rehabilitation device for a patient of spinal curvature. The adolescent diopathic scoliosis(AIS) must be treated by rehabilitation brace if Cobb angle is $20^{\circ}{\sim}40^{\circ}$. The rehabilitation brace is consist of 4 vest and 2 hinge parts(hinge and couple bar) that give a force to the ribs. But thin and light hinge parts for young patient failed easily because of unusual movement of the upper body. We studied optimum design and structural analysis of hinge parts when it distorted by tensile and bending force. The specimen of hinge parts were tested to evaluate the failure strength. And we attached circuits with memory and sensor detecting pressure and displacement to recoding stress in hinge parts. These data are used to alarm the patient to stop unusual movement and understand the load history.

• 한방재활의학과학회지
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• 제21권4호
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• pp.97-109
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• 2011

Objectives: To investigate the correlation among cervical curvature, neck pain, and headache in patients with chronic neck pain. Methods: A clinical study was carried out in 48 chronic neck pain patients in the hospital of Gang-Dong Kyung-Hee University. The curvature of the cervical spine was measured by 3 types of measuring methods, Neck pain and headache were estimated using questionnaire and visual analogue scale (VAS). Results: Curvature angles of the cervical spine had significant positive correlation with the neck pain and headache, and headache can be estimated by cervical curvature using linear regression. Conclusions: The results suggests that the cervical curvature of chronic neck pain patients has a positive correlation with the nock pain and headache, and cervical curvature will be a posible preditor of chronic tension-type headache in patients with chronic neck pain.

• 대한물리의학회지
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• 제11권2호
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• pp.13-16
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• 2016

PURPOSE: The Fukuda test can be used at home and in school to diagnose scoliosis at an early stage and prevent serious curvature of the spine. This study aimed to use the Fukuda test to detect scoliosis. An additional aim was to invoke the national interest in imbalanced postures and habits, which result in scoliosis, by providing data obtained in periodic assessments. METHODS: The study consisted of 35 idiopathic scoliosis patients (22 in right lumbar spinal region and 13 in the left lumbar spinal region). The distance of displacement and angle of displacement were measured following the Fukuda test. A correlation analysis was then used to examine the distance of displacement and angles of displacement and rotation with regard to the direction of the curve in scoliosis. RESULTS: There was a significant negative correlation (p<0.00) between the direction of the curve in scoliosis and the angle of displacement, but there was no correlation between the cobb's angle and distance of displacement or between the cobb's angle and angle of rotation. CONCLUSION: The Fukuda test did not capture changes in spinal curvature such as the cobb's angle, or subsequent changes in the muscles. Thus, the Fukuda test is not suited to examining the direction or status of the thoracic curve in scoliosis patients. Simple methods to objectively measure scoliosis need to be developed.

• 대한약침학회지
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• 제19권4호
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• pp.359-362
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• 2016

Objectives: Loss of lumbar lordosis causing pain and curvature of the vertebral skeleton to one side is a relatively uncommon disease. To our knowledge, successful treatment of loss of lumbar lordosis with any potentized homeopathic drug diluted above Avogadro's limit (that is, above a potency of 12C) has not been documented so far. In this communication, we intend to document a relatively rare case of loss of lumbar lordosis with osteophytic lippings, disc desiccation, and protrusion, causing a narrowing of secondary spinal canal and a bilateral neural foramina, leading to vertebral column curvature with acute pain in an adolescent boy. Methods: The patient had undergone treatment with orthodox Western medicines, but did not get any relief from, or cure of, the ailment; finally, surgery was recommended. The patient's family brought the patient to the Khuda-Bukhsh Homeopathic Benevolent Foundation where a charitable clinic is run every Friday with the active participation of four qualified homeopathic doctors. A holistic method of homeopathic treatment was adopted by taking into consideration all symptoms and selecting the proper remedy by consulting the homeopathic repertory, mainly of Kent. Results: The symptoms were effectively treated with different potencies of a single homeopathic drug, Calcarea phos. X-ray and magnetic resonance imaging (MRI) supported recovery and a change in the skeletal curvature that was accompanied by removal of pain and other acute symptoms of the ailment. Conclusion: Homeopathy can be a safe, much less expensive, non-invasive, and viable alternative for the treatment of such cases.