• Transactions of the Korean Society of Mechanical Engineers A
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• v.36 no.1
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• pp.29-35
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• 2012

The treatments for spinal canal stenosis are radicular cyst removal, spine fusion, and implantation of an artificial intervertebral disc. Artificial intervertebral discs have been most widely used since the mid-2000s. The study of artificial intervertebral discs has been focused on the analysis of the axial rotation, lateral bending, the degrees of freedom of the disc, and flexion-extension of the vertebral body. The issue of fatigue failure years after the surgery has arisen as a new problem. Hence, study of artificial intervertebral discs must be focused on the fatigue failure properties and increased durability of the sliding core. A finite element model based on an in the artificial intervertebral disc (SB Charit$\acute{e}$ III) was produced, and the influence of the radius of curvature and the change in the coefficient of friction of the sliding core on the von-Mises stress and contact pressure was evaluated. Based on the results, new artificial intervertebral disc models (Models-I, -II, and -III) were proposed, and the fatigue failure behavior of the sliding core after a certain period of time was compared with the results for SB Charit$\acute{e}$ III.

• The Journal of Churna Manual Medicine for Spine and Nerves
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• v.2 no.2
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• pp.123-130
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• 2007

Objectives: The object of this study is to report a clinical effect of chuna manual theraphy for the soft herniated intervertebral cervical disc. Methods: The patient was treated by cervical traction technique which is one of the chuna manual theraphy with other conservative treatments including acupuncture, herbal mixture, bee-venom theraphy and TENS(Transcutaneous Electrical Nerve Stimulation). Visual analogue scale(VAS) have been used for result report. Results: After the cervical traction technique, the VAS was significantly improved. Conclusions: It is thought that the chuna manual theraphy might be effective to the patient with soft herniated intervertebral cervical disc.

• Journal of Acupuncture Research
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• v.18 no.1
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• pp.226-236
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• 2001

Objects : To evaluate clinical efficiency of The A-Shi point for the herniated lumbar intervertebral disc. Methods : The patients who had a diagnosis of herniated lumbar intervertebral disc by lumber CT and MRI, and were observed from the twentieth March 2000 to the tenth Novemsber 2000, were divided into two classes ; the "A" group was 15 cases practiced with Acupuncture treatment used of A-Shi point and the twelve-Meridian, the "B"group 15cases only Acupuncture treatment used of twelve-Meridian, Results : the most type of low back pain was, the Gall bladder channel of Foot-souyang 15 cases (50%) and the Gall-Bladder Meridian Muscle was 45 cases the most in the existence part of A-Shi point On the result of treatment due to clinical symptoms, the "A" group was 57.9% as excellent and "B" group 19.8%. On the measurement of Lumber flexion, the "A" group proceed more excellent result than the "B group at the whole grade. Conclusion : These results suggest that The A-shi point was effective treatment of herniated intervertebral disc.

• Journal of Acupuncture Research
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• v.25 no.4
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• pp.171-181
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• 2008

Purpose : In order to estimate clinical effects of Oriental Medicine Treatment with acupotomy therapy of herniated lumbar intervertebral Disc patient needed operation. Methods : From 17th April, 2008 to 17th April, 2008, 1 female patient diagnosed as herniated lumbar intervertebral Disc at L4/5(right postero-lateral extrusion type)was treated with general oriental medicine therapy(acupuncture, moxibustion, cupping, physical therapy, herbal medication) and acupotomy. Results : The patient's chief complaints - Low back pain, both buttock pain, Right. leg paresthesia were remarkably improved. Conclusions : This study demonstrates that oriental medical treatment with acuputomy therapy has notable effect in improving functional disability and symptoms of lumbar radiculopathy. as though we had not wide experience in this treatment, more research is needed.

• Journal of Veterinary Clinics
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• v.41 no.1
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• pp.1-7
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• 2024

The intervertebral disc is a crucial structure located between each vertebral body, except C1 and C2 and the fused sacral vertebrae, which provides cushioning and stability. However, sometimes these discs may bulge or extrude, causing painful conditions and various neurological problems such as ataxia, paresis, motor or sensorimotor paralysis. As a result, dogs affected by intervertebral disc disease (IVDD) can suffer a significant decrease in their quality of life. The main objective of this study was to provide comprehensive data on the body size of several IVDD-susceptible dog breeds commonly bred in South Korea, which could help develop supportive devices for IVDD patients. Using standardized measurements, the study aimed to design appropriate support tools, taking into account the mobility challenges faced by IVDD patients. The findings provide valuable data to improve the quality of life of patients with IVDD. In addition, it may lay the foundation for research to establish the correlation between body size and IVDD through future research.

• Journal of Korean Neurosurgical Society
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• v.44 no.5
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• pp.327-333
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• 2008

Objective: The purpose of this study is to verify the usefulness of the rabbit model for disc degeneration study. Materials: The L1-L2, L2-L3, L3-L4. or L4-L5 lumbar intervertebral disc (IVD) of 9 mature male New Zealand White rabbits were injured by inserting a 16-gauge needle to a depth of 5 mm in the left anterolateral annulus fibrosus while leaving L5-L6 IVD uninjured. Three other rabbits also received intradiscal injections of rabbit disc cells transfected with adenovirus and bone morphogenetic protein-2 (ad-BMP-2) at L4-L5 in addition to injury by 16-gauge needle at the L1-L2 level. Using digitized radiographs, measurements of IVD height were made and analyzed by using the disc height index (DHI). Magnetic resonance imaging (MRI) scans of the injured discs, injected discs, and uninjured L5-L6 discs were performed at 15 weeks post surgery and compared with preoperative MRI scans. Results: All twelve rabbits showed consistent results of disc degeneration within 15 weeks following annular puncture. DHIs of injured discs were significantly lower than that of the uninjured L5-L6 discs (p<0.05). The mean value of disc degeneration grade of injured discs was significantly higher than that of uninjured discs (p<0.05). The injection of disc cell transfected with ad-BMP-2 did not induce disc regeneration at 15 weeks after injection. Conclusion: This study showed that the injured disc had a significant change in DHI on simple lateral radiograph and disc degeneration grade on MRI scans within 15 weeks in all rabbits. Rabbit annular puncture model can be useful as a disc degeneration model in vivo.

• The Journal of Internal Korean Medicine
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• v.39 no.5
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• pp.879-885
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• 2018

Background: A herniated intervertebral disc (HIVD) triggers low back pain (LBP). Korean conservative treatment can decrease the herniated disc size without traditional surgery, but detailed prognosis is unclear. Case summary: One patient presented with LBP and bilateral sciatica. She was diagnosed with lumbar HIVD by magnetic resonance imaging (MRI) and treated by Korean medicine (acupuncture, decoction, and physical therapy). For 6 months, MRI follow-up exams showed the aggravation and migration of L5-S1 followed by distinct improvement of the same lumbar vertebra. Conclusion: The disc size in a patient with lumbar HIVD was reduced by Korean conservative treatment, and periodic radiologic examination showed the previously unrecognized process of absorbing the disc.

• Journal of Korean Neurosurgical Society
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• v.39 no.6
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• pp.432-437
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• 2006

Objective : In order to establish the index of degeneration, the authors performed a histochemical study with Safranin-O staining and investigated the occurrence of apoptosis in the human intervertebral disc. Methods : Eighteen intervertebral disc specimens surgically extracted from the patients and two additional specimens from the autopsied cases were stained with Safranin-O for proteoglycan according to a standard protocol. Terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate- biotin nick end labeling[TUNEL] was used to detect the fragmented DNA known to be associated with apoptotic cell death and classification scheme was formulated for categorization of the degree of Safranin-O staining [normal, moderate reduction, faint] by modification of Makin's histological-histochemical grading. The Kruskal-Wallis H test and Chi-square test were used for statistical analysis. Results : The statistical results showed a significant difference in the mean age between "normal" Safranin-O staining group and the others [19.3 versus 55, 43.4, p=0021]. However, there was no statistically significant correlation between Safranin-O staining and MR grading of disc degeneration. Only six of eighteen surgical specimens and none in autopsies showed positive apoptotic cells in TUNEL staining. Conclusion : The determination of the degree of degeneration in surgically obtained disc tissue per se by histochemical staining or by the degree of apoptosis that corresponds to its morphologic change was not feasible.

• Journal of Acupuncture Research
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• v.33 no.4
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• pp.39-47
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• 2016

Objectives : This study was conducted to examine the clinical effects of thread embedding acupuncture on lumbar herniated intervertebral disc patients. Methods : This is a retrospective study based on clinical charts. Despite the treatments of acupuncture, pharmacopuncture, herbal medicine, and physical therapy during admission period, 10 lumbar herniated intervertebral disc patients who had shown few improvements in their symptoms were selected as subjects. Thread embedding acupuncture was conducted to reduce patient pain. Patient progress was categorized into three periods based on when the embedding procedure performed. Verbal numeric rating scale (VNRS), Oswestry disability index (ODI), and a 5 step evaluation scale for satisfaction were used to analyze the outcome. Results : Regarding comparison of VNRS improvement rate, both 3 and 6 days after embedding progress showed significant difference compared to before embedding progress. ODI improvement rate showed significant difference only 6 days after embedding progress. Patients' satisfaction with treatment had increased by several degrees. Conclusion : Thread embedding acupuncture for lumbar herniated intervertebral disc patients may be effective in reducing pain and improving their quality of life.

• Journal of Korean Physical Therapy Science
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• v.13 no.3
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• pp.27-40
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• 2006

The purpose of this study is comparative with administrative and clinical standard of conservative treatment on herniated intervertebral lumbar disc patients. The persons who diagnosed to herniated intervertebral lumbar disc were attended in this study. The number of cases were 120 cases. We evaluated their chart, X-ray and MRI. The result of the group 1 study(60 cases) were as follows; 1. The patients who treated for 41days were improved 100%, which was 3cases(5%). 2. The patients who treated for 45days were improved 90%, which was 13cases(22%). 3. The patients who treated for 43days were improved 80%, which was 28cases(47%). 4. The patients who treated for 39days were improved 70%, which was 6cases(10%). 5. The patients who treated for 28days were improved 60%, which was 5cases(28%). 6. The patients who treated for 22days were improved 50%, which was 4cases(7%). 7. The patient who treated for 28days were improved 40%, which was 1case(2%). The result of the group 2 study(60 cases) were as follows; 1. The patients who treated by administrative standard were improved 40%, which was 8cases(13%). 2. The patients who treated by administrative standard wereimproved 30%, which was 32cases(53%). 3. The patients who treated by administrative standard wereimproved 20%, which was 7cases(12%). 4. The patients who treated by administrative standard were improved 10%, which was 9cases(15%). 5. The patients who treated by administrative standard wereimproved 0%, which was 4cases(7%). Conclusion ; In herniated intervertebral lumbar disc patients who had conservative treatment. The highest improve patients were 28 cases(47%), who treated for 43 days in group 1. The lowest improve patient were 4 case(7%), who treated by administrative standard in group 2. The Effective duration of conservative treatment was more than 43 days in group 1. Group 1 which applied to clincal standard was much batter than group 2 which applied to administrative standard.