• The Journal of Korean Medicine
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• v.29 no.5
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• pp.90-95
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• 2008

Objectives : The purpose of this study is to evaluate if there is significant correlations between the angle of costal arch and digestion, and BMI(Body Mass Index). Methods : To know the correlation between digestion and the angle of costal arch, we hand-measured the angle of costal arch and made questionnaire about digestion. We analysed the data with Pearson product-moment correlation analysis using SPSS 12.0. Results : There is proportional correlation between the angle of costal arch and digestion. Also wider costal arch shows better appetite, faster speed of eating and more quantity of meal. And someone having wider costal arch has less digestion disorder after eating heavy foods or being anxious. And there is proportional relation between angle of the angle of costal arch and BMI. Conclusions : There is significant correlation between the angle of costal arch and digestion as wider costal arch can digest better. Also it has proportional relation between the angle of costal arch and BMI. We expect that further study about morphology of abdomen will develop our abdominal examination and diagnostic methods.

• Journal of Environmental Impact Assessment
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• v.19 no.2
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• pp.179-187
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• 2010

A costal improvement project is designed for preventing disasters on the coast, improving costal environment, and promoting costal functions, so it is different from the one for developing coasts. However, the costal improvement project also affects the surrounding environment and it may damage the costal environment in some cases. In line with this, this study was carried out to provide the guideline to the review on environmental conditions, which should be performed in the stage of establishing the plan for a costal improvement project, so that the influence affecting marine environment can be reduced and more efficient coastal project can be planned. The costal improvement project is different in the degree of affecting the costal environment according to kinds, scales, and regions. Accordingly, in this study the state of the coastal improvement project and involved problems were analyzed. The prior environmental review system was divided into a seawall-installation project, a marine construction such as the installation of submerged breakwater and jetties, and a project for creating water-friendly coast including a park without marine landfill. The main items for reviewing these specific projects were presented.

• Journal of Sasang Constitutional Medicine
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• v.20 no.1
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• pp.48-55
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• 2008

1. Objectives To examine appearances and body shapes is essential of diagnosing Sasang constitution. Although there are many parts and ways to examine appearances, examination of abdomen would be so necessary and important. We focused on angles of costal arch according to Sasang constitution so that we can find some specialty of each constitution. 2. Methods We measured the angles of costal arch of 173 participants who were diagnosed as Sasang constitution after treatments and analyzed by ANOVA and using Scheffe’s t-test or t-test for some independent parameters. 3. Results and Conclusions 81 Taeumin’s mean costal angle is $93.64^{\circ}$ to be the widest one. 51 Soyangin have $87.27^{\circ}$ mean angle of costal arch to be the second widest one. The next one is Taeyangin’s mean angle of costal arch as $81.66^{\circ}$ but the number of them were only 3. The sharpest costal angle which is $71.02^{\circ}$ is owned by 38 Soeumin. Male participants have wider costal arch than female in all the constitutional groups.

• Korean Journal of Bronchoesophagology
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• v.5 no.2
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• pp.182-190
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• 1999

OBJECTIVES : To determine the results of posterior cricoid split with costal cartilage graft in the treatment of moderate and severe subglottic stenosis in adults, and to assess the effect of T-tube as a stent in this surgery. PATIENTS AND METHODS : Four adults with moderate and severe subglottic stenosis who underwent posterior cricoid split with costal cartilage graft from 1994 to 1995. Three patients were male and one was female. All of the patients had acquired subglottic stenosis, 2 of whom had a bilateral vocal folds paralysis. The surgical procedure we used included a cricoid lamina split with costal cartilage grafting and T-tube stenting. Arytenoidectomy was a added in 2 patients with bilateral vocal folds paralysis. RESULTS : Three of the 4 patients underwent decannulation, and 1 is still undergoing treatment. 3 patients who underwent decannulation demonstrated marked improvement in their symptoms of airway obstruction and good postoperative voice quality. CONCLUSIONS : The posterior cricoidotomy lumen augmentation with costal cartilage grafting is a safe and effective technique for the treatment of moderate and severe subglottic stenosis in adults and T-tube is a good alternative stenting material for this procedure.

• Medical Lasers
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• v.10 no.2
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• pp.90-95
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• 2021

Background and Objectives Surgery for harvesting costal cartilage is often required for revision septorhinoplasty due to a lack of septal cartilage in patients with a severely contracted nose, and postoperative scarring on the anterolateral rib cage commonly requires additional treatment. This study aimed to evaluate the therapeutic efficacy and safety of combined polydeoxyribonucleotide (PDRN) and microlens array (MLA)-type nanosecond-domain neodymium (Nd):yttrium-aluminum-garnet (YAG) laser treatment for postoperative scars after costal cartilage harvest surgery. Materials and Methods Nine Korean patients with scars after costal cartilage harvest surgery treated with PDRN injections and MLA-type Nd:YAG laser treatments were retrospectively reviewed. Results Most of the scar lesions exhibited clinical improvement at 2 weeks after PDRN and MLA-type nanosecond-domain laser treatments, and the lesions further improved after adding more treatment sessions. The median Vancouver Scar Scale (VSS) score decreased from 6 (interquartile range [IQR]: 6-7) before combined intralesional PDRN injection and MLA-type, nanosecond-domain Nd:YAG laser treatments to 3 (IQR: 2-4) thereafter. Patient satisfaction after the combination treatments was rated as satisfactory. None of our patients reported major adverse events. Conclusion This case series study demonstrated that combined PDRN and MLA-type, nanosecond-domain Nd:YAG laser treatments are effective and safe for treating scars from costal cartilage harvest surgery.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.20 no.6
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• pp.35-50
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• 2017

This study is to see the recovery effect of the Deltacon method by investigating the amount of sand deposition, the topographical cross section and the vegetation structure; and to derive the effective recovery method of coastal erosion area. The target areas of this study include Jinri coastal dune, Bajireum coastal dune and Seopori coastal dune in Deokjeok-do Island, Ongjin-gun, Incheon. In order to assess the current status of the coastal erosion area recovery, the soil profile structure map was prepared on the site and then the amount of sand deposition within 1m was calculated indoors. The vegetation recovery status of the costal erosion area was assessed via the analyses of the topographical profile structure and the plant community structure, and we aim to derive the effective recovery plan of the Deltacon method with the results. With the Deltacon method, structures with ductile material, special non-woven fabric bags filled with soil and vegetation can be performed therefore the structuralstability and prevention of sand erosion can be achieved. The amounts of sand deposition of Bajireum coastal dune, Seopori costal dune and Jinri costal dune were calculated $0.98{\sim}2.54m^3$, $1.02{\sim}2.96m^3$, and $0.27{\sim}0.75m^3$, respectively, and it is considered that the costal erosion recovery is actively performed for Bajireum costal dune and Seopori costal dune. The analysis results of vegetation structures by topography show that the installation of the send collecting net in steep areas has been highly effective and the Deltacon-constructed target areas have been restored to vegetation and the costal dune, which is similar to the natural dune. The investigation of the plant community structure in Deokjeok-do Island costal dune, Incheon displayed similar research results of the existing costal dune flora and confirmed the emergence of Lathyrus japonicus, Carex kobomugi, Elymus mollis, Vitex rotundifolia, and Calystegia soldanella and others. In order to carry out further effective recovery with the Deltacon method, improvements to rootage of herbaceous vegetation are needed in areas without foredune herbaceous vegetation, and continuos maintenance & management monitoring of connected windbreak forest to costal dunes are also necessary.

• Archives of Craniofacial Surgery
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• v.10 no.2
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• pp.120-126
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• 2009

Purpose: Autogenous cartilage is generally first choice in rhinoplasty because of its biocompatibility and resistance to infection. On the other hand, allogeneous cartilage graft might preferred over an autogenous graft to avoid additional donor site scars, morbidity and lengthened operating time. Allogenous costal cartilage ($Tutoplast^{(R)}$) not only have the advantage of averting donor site morbidity but also are resistant to infection, resembling autogenous cartilage graft. We report here a technique for rhinoplasty by using allogenous costal cartilage graft. Methods: Through open rhinoplastic approach, alar cartilage is released from upper lateral cartilage and relocated caudally. After relocation of alar cartilage, allogenous costal cartilage is immobilized by nonabsorbable suture material at caudal aspect of septal cartilage. Caudal end of allogenous costal cartilage is sutured between medial crura of alar cartilage. Tip projection is improved by using interdormal suture, transdormal suture and shield-shape cartilage graft which is harvested from concha Results: No significant resorption and infection was detected in any of patients. Aesthetic and functional results were satisfactory. Conclusion: The low incidence of major complication and versatility of allogeneous costal cartilage graft make safe and reliable source of cartilage graft in rhinoplasty.

• Journal of Trauma and Injury
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• v.31 no.1
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• pp.12-15
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• 2018

Rib fixations for flail chest or displaced rib fractures are not a new technique. However, reports on rib fixations involving costal cartilage fractures are very few and surprisingly there are no reports of internal fixations involving only the costal cartilage in the English literature. The diagnosis is difficult and the necessity of the procedure may be quite controversial. Placing plates in screws into the costal cartilage alone may seem unstable and easily dislodged or stripped through the cartilage. We report a 31-year-old male scuba diver instructor who underwent rib fixations over his 7th and 8th costal cartilage ribs for severe pain. The procedure was done with conventional plates and screws. He had the plates and screws removed 2 months later due to lingering pain, but with them removed he is now quite happy with the results without pain. The procedure for fixation of painful overlapped costal cartilage is quite simple and can be done with the usual conventional methods, fixating plate and screws directly over the cartilage alone without fixation over the bony rib.

• Journal of The Korean Society of Agricultural Engineers
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• v.58 no.1
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• pp.61-71
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• 2016

This study performed the physical and mechanical experiment on the samples of costal marine clays individually collected in western and southern regions to identify the characteristics of western and southern costal marine clay. Based on the experiment result, the characteristics of costal marine clay is identified undrained shear strength. Based on the experiment result on the physical and mechanical characteristics of costal marine clays, the regression is presented that can analyze the mechanical characteristics of undrained shear strength in costal marine clay of Korea, region of Korea and western-southern region. The correlation of uniaxial compressive strength and undrained shear strength was suitable for use of western-southern region correlation equation. The test result of Jeonnam Yeosu area compares with prediction results of previous researchers formula and western-southern region formula. Prediction results appear highest reliability on the 0.827 of coefficient of determination in the prediction results of the western-southern region formula.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.53 no.1
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• pp.9-18
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• 2020

We investigated the maturity and spawning dynamics of chub mackerel Scomber japonicus in Korean waters using samples collected by a large purse seine fishery from January 2013 to December 2017. We analyzed sex ratio, monthly maturity stage, gonadosomatic index (GSI), Fulton's condition factor (K), and fork length at 50% group maturity. Spawning occurred from March to June, with a peak in May. We detected a significant difference in sex ratio (χ² test, P<0.05). The relationship between fork length and body weight was expressed as BW=0.0025FL^3.4693. We estimated 50% group maturity at a female fork length of 29.3 cm.