• The Journal of the Korean dental association
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• v.56 no.3
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• pp.134-141
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• 2018

Purpose: To measure the head tilting angle creating initial condylar cut-off and to find the head position inducing the superimposition of the cervical vertebrae over the mandibular ramus on panoramic radiograph. Materials and Methods: The panoramic radiographs were taken with Didactic skull on cervical spine model (Scientific GmbH, Hamburg, Germany) using Kodak 8000c Digital Panoramic radiography. For the inherent radiolucency of the plastic skull model, radiopaque 1 mm diameter lead wires were attached along the margin of the mandibular condyle, ramus, mandibular body, cervical vertebrae, and FH plane of the skull model. For measuring the head tilting angle creating the condylar head cutoff, panoramic radiographs were taken by tilting the FH plane downward in 5 degree increments. For finding the distance between transverse process of the third cervical vertebra and gonion inducing superimposition of cervical vertebrae on the mandibular ramus, panoramic radiographs were taken by decreasing the distance in 0.5 cm increments. Result and Conclusion: The condylar cutoff began to appear when the head of skull model was tilted downward by 15o. As the head tilting angle increasing, the condylar cutoff became more prominent. The superimposition of cervical vertebrae over the mandibular ramus began to appear when the distance between the gonion and third cervical vertebra was 1.0 cm. As the distance decreasing, the superimpostion became more prominent.

• Journal of radiological science and technology
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• v.35 no.2
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• pp.83-92
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• 2012

In anteroposterior projection for cervical vertebra, it is general that the incidence angle of X-ray is $15^{\circ}$ to $20^{\circ}$ degrees to head in order to prevent overlap of mandible and occipital bone and to observe array of cervical interbody and shapes of joints. However, the angle is appropriate for foreigners that was determined by foreign literature review long ago, and there have been few researches of incidence angle for Koreans' body type. The purpose of in this study are to identify the incidence angle appropriate for Koreans and to present methodology. In order to measure the incidence angle, 1,044 patients who visited S Hospital located in Seosan were selected and measured of average length of cervical vertebra, OID, axis angle, and FID. The incidence angle was calculated from the applied formula by measuring average values per age groups and sex (see Formula 1 and 2). The average length of cervical vertebra was 6cm: the length was increased from teenagers to twenties but was decreased since thirties. The difference between males and females was around 1cm (p<.01). The OID was almost the same regardless of age groups and sex. As for axis angle, the slope was increased in teenagers and twenties, but was decreased since thirties. The difference between males and females was around 2 degrees (p<.01). The FID measurements were almost the same regardless of age groups and sex, and when the incidence angle was measured from these values, the teenagers were $15.9^{\circ}$, the twenties were $16.9^{\circ}$, the thirties were $16.6^{\circ}$, the forties were $16.2^{\circ}$, the fifties were $15.9^{\circ}$, and the sixties were $14.5^{\circ}$, indicating that the angle was increased from teenagers to the twenties but decreased since the thirties. While the angles of males and females were measured to be the same in the teenagers, the angle was different between males and females by $2^{\circ}$. When the incidence angle statistically analyzed with measurement of average length of cervical vertebra, OID, axis angle, and FID, all of them were shown to have correlations with the incidence angle (p<.01). Conclusively, it was shown that the incidence angle was measured differently from average length of cervical vertebra, OID, FID, and axis slope, as well as from age and sex. Therefore, it can be suggested that the anteroposterior radiation test for cervical vertebra should be conducted by different incidence angles based on age and sex. The data of this study may be used as reference in determining the incidence angle of cervical vertebra tests for the future.

• Journal of Acupuncture Research
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• v.17 no.4
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• pp.139-148
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• 2000

Objectives : Hua-Tuo-Jia-Ji-Xue(華佗夾脊穴) is the Jing-Wai-Qi-Xue(經外奇穴) that is widely used in clinic and effective in Acupuncture and Moxibustion. But the location, number, acupuncture method, clinical application of Hua-Tuo-Jia-Ji-Xue have not been explained clearly and consistently; moreover, studies or clinical reports about this are insufficient. The purpose of this study is to investigate the location, number, acupuncture method, clinical apptication of Hua-Tuo-Jia-Ji-Xue. Methods : We investigated Hua-Tuo-Jia-Ji-Xue through survey of 11 books and 26 relevant journals published in China Results : 1. Hua-Tuo-Jia-Ji-Xue is located in about 0.5 Cun(寸) at both sides of spinous process of each vertebra. 2. There is differ as the number of Hua-Tuo-Jia-Ji-Xue is 34, 48, 56, 58 in each documents. Hua-Tuo-Jia-Ji-Xue located in first, second cervical vertebra and first sacrum is low in application frequency, Hua-Tuo-Jia-Ji-Xue located from third cervical vertebra to fourth lumbar vertebra is high in apptication frequency. Therefore, all of the acupoints located in about 0.5 Cun(寸) both sides of spinous process of cervical, thoracic, lumbar and sacral vertebrae are regarded as Hua-Tuo-Jia-Ji-Xue in wide meaning. 3. There are Kou-Ci-Fa(叩刺法), Qian-Ci-Fa(淺刺法), Yan-Pi-Ci-Fa(沿皮刺法), Shen-Ci-Fa(深刺法) in acupuncture method of Hua-Tuo-Jia-Ji-Xue. Acupuncturing depths, directions is differ in each location(cervical, thoracic, lumbar vertebra, sacrum) and have something to do with therapeutic effect of Hua-Tuo-Jia-Ji-Xue. The feeling that patient receive after acupuncture is the key to the treatment of disease. 4. The clinical application of each Hua-Tuo-Jia-Ji-Xue is mainly selected by distribution of meridians, nerve roots, vertebral segments which are attacked with a disease. The musculoskeletal diseases in treatment of disease by Hua-Tuo-Jia-Ji-Xue are the most common as 12 cases. Second, there are many reports about nervous system diseases. In addition, good therapeutic results by application of Hua-Tuo-Jia-Ji-Xue are reported in some diseases, for instance, diseases of five viscera and six entrails, organ, tissue Conclusions : Hua-Tuo-Jia-Ji-Xue is located in about 0.5 Cun(寸) at both sides of spinous process of each cervical, thoracic lumbar and sacral vertebra. Therapeutic effect of Hua-Tuo-Jia-Ji-Xue has something to do with acupuncturing depths, directions and feelings. Hua-Tuo-Jia-Ji-Xue is mainly selected by distribution of meridians, nerve roots, vertebral segments which are attacked with a disease and is mainly applied musculoskeletal diseases, nervous system diseases.

• Journal of Korean Physical Therapy Science
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• v.31 no.1
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• pp.88-97
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• 2024

Background: This study was to investigate effects of Correlation Analysis between Cervical-Vertebra Angle and Neck Range of Motion, Muscle Strength, Sternocleidomastoid Thickness of Patients with Forward Head Posture Design: Correlation Analysis. Methods: The subjects of this study were a total of 54 people in the forward head position and their ages were between 30 and 50 years old. The subjects cranio-vertebral angles, neck extension, neck flexion, neck rotation angles, neck flexor strength, neck extensor strength, sternocleidomastoid thickness were evaluated through measuring instruments. The thickness of the sternocleidomastoid muscle was measured using an imaging ultrasound diagnostic device (ultra sound, Versana Premier, GE Medical systems, China). CVA was measured by measuring the side photo of the subject was taken with a camera and evaluated.. neck joint range of motion was measured through digital inclinometer for extension, flexion, and neck rotation. neck muscle strength was measured by measuring the using a digital sthenometer. Data analysis in this study was statistically processed using SPSS version 26.0 (IBM SPSS Inc., USA). Correlation analysis was used and the statistical significance level was set at 0.05. Results: The results neck extension(r= 0.70^**), neck flexion(r= 0.67^**), neck rotation(r= 0.56^**), neck extensor muscle strengt(r= 0.85^**), neck flexor muscle strength(r= 0.66^**), sternocleidomastoid thicknes(r= -0.81^**) It indicates that there is a correlation. Conclusion:These results improve the Cervical-vertebra angle of patients with forward head posture should include a program to improve the thickness of the SCM. In the future, study can be used as an evidentiary material for treatment interventions to improve the Cervical-vertebra angle of patients with forward head posture.

• The Transactions of the Korean Institute of Electrical Engineers D
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• v.55 no.8
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• pp.378-385
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• 2006

In this study, a method measuring signal propagation direction in human body was developed by using passive electrical properties of the body. The measured method of the signal propagation direction is to apply basic characteristic of electricity to the human body; when a voltage is set to a conducted medium, according to the polarity of the conducted voltage, the voltage rising or drop is generated. And using this concept, it is able to estimate the direction of electrical signal on the human body. The passive electrical properties were measured and the direction of signal propagation was estimated on the followings; between the flexor carpi radialis, between arms, between legs, between an arm and a leg, between the cervical vertebra and the upper limb, between the sacral vertebra and the leg, between the cervical vertebra and the tendon of triceps brachii, and between the sacral vertebra and the calcaneal tendon. As the result of experiments, the passive electrical properties were increased from l[Hz] to 50[kHz] of the inputted frequencies and showed at saturating tendency after that. And also, the estimated signal propagation directions using the developed method in this study agreed with the expected directions exactly at each part of the human body.

• The Journal of Churna Manual Medicine for Spine and Nerves
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• v.9 no.2
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• pp.35-43
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• 2014

Objective : To report a case of cervical block vertebra with neck pain successfully treated with conservative Korean Traditional Medicine treatment with Thoracic Chuna Manipulation. Methods : A patient diagnosed with block vertebra was treated with Thoracic Chuna manipulation, acupuncture, pharmacoacupuncture, and herbal medicine. Numeric Rating Scale(NRS) and Neck Disability Index(NDI) scores were collected before and after treatment for comparison. Results : There was a significant decrease in NRS and NDI scores. The mean NRS score decreased from 8 to 1, and NDI from 50 to 8. Conclusion : Conservative Korean Traditional Medicine treatment appears to be effective for treatment of cervical block vertebra.

• Journal of Oral Medicine and Pain
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• v.21 no.1
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• pp.197-206
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• 1996

This study ws performed to investigate the relationship between cervical curvature and the spatial position of the posterior part of the atlas imaged in the lateral cephalograph. Sixty six patients with temporomandibular disorders(TMD) and twenty dental students were selected for patients group and control group, respectively. The average age of patients group was 26.3 years, and 24.9 years in control group. Measured variables were cervical depth, upper space between the atlas and the base of the occiput, lower space between the atlas and the spinous process of the axis, rea of the posterior part of the atlas imaged in the lateral cephalograph, and the cervical curvature passing through the uppermost point in dorsal side of Dens of the Axis to the lowermost and rearmost point of the 5th cervical vertebra. The reliability of the method used for measuring cervical curvature with curved ruler was also tested. The results obtained were as follows : 1. Cervical depth of patients group was 122.9mm and significantly shorter than that of control group, in which cervical depth was 131.9mm, and cervical depth was significantly correlated with other variables in all subjects. 2. Upper space was greater in patients group, but total space including upper and lower space showed no difference between the two groups. The average value of total space was 26.5mm. 3. Area of the posterior part of the atlas was 168.2$\textrm{mm}^2$ in patients group, and 186.5$\textrm{mm}^2$ in control group with significant difference between the two groups. 4. Average range of radius of cervical curvature were 33-40cm and there was no difference between the two groups. 5. There was no significant correlation between the cervical curvature and the area of the posterior arch of the atlas. 6. The method using curved ruler for measuring cervical curvature could be accepted as a reliable method.

• Journal of Korean Medical Ki-Gong Academy
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• v.13 no.1
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• pp.46-55
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• 2013

The aim of this study is to explain that we can use cervical vertebral portion to treat low back pain. In oriental medicine, there are many methods that use remote point to reduce low back pain. Anatomically, cervical vertebral portion relates to lumbar and sacral vertebral portion. As a result, in oriental medicine clinic, we can treat cervical vertebral portion to reduce low back pain.

• Journal of TMJ Balancing Medicine
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• v.5 no.1
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• pp.20-26
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• 2015

Four cases of functional cerebrospinal therapy (FCST) were reviewed to see whether any improvement is observed in the X-ray images of open-mouth view and cephalocervical views. Intraoral appliances of TMJ balancing appliance (TBA) and cervical balancing appliance (CBA) and active movement of within range-of-movement of the jaw and the neck were applied to each patient. Improved balance of $2^{nd}$ cervical vertebra position and cervical alignment were observed in all the four cases.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.33 no.7
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• pp.637-644
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• 2009

We have analyzed the biomechanical characteristics of cervical spine after total disc replacement using finite element analysis. A finite element model of C2-C7 spinal motion segment was developed and validated by other experimental studies. Two types of artificial discs, semi-constraint and un-constraint, were inserted at C6-C7 segments. Inferior plane of C7 vertebra was fixed and 1Nm of moment were applied on superior plane of C2 vertebra with 50N of compressive load along follower load direction. Mobility of the cervical spine in which each artificial disc inserted was higher than that of intact one in all loading conditions. Also, high mobility at the surgical level after total disc replacement could lead higher facet joint force and ligaments axial stresses. The results of present study could be used to evaluate surgical option and validate the biomechanical characteristics of the implant in total disc replacement in cervical spine.