• Maxillofacial Plastic and Reconstructive Surgery
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• v.18 no.3
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• pp.378-387
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• 1996

We performed costochondral grafting in mmandibular reconstruction including condyle replacement in 5 patients which have 4 cases of ameloblastoma, 1 case of resorption of left condyle due to osteomyelitis. We harvested the 6 th costochondral cartilage of unaffected side. No specific complications were appeared with unexpected fracture of costochondral junction and infection of operation site, These patients show 30-45mm at month opening, near normal of affected side, near normal or normal of unaffected side at lateral excursion. Postoperative coureses was uneventful with improved cosmetic and functional results. Our report is indicated that the costochondral graft is satisfactory to reconstruct mandibular defect including condyle replacement, especially in growing patients.

• Journal of Chest Surgery
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• v.32 no.5
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• pp.489-493
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• 1999

The pectus carinatum or anterior protrusion of the sternum is a less common than pectus excavatum. It occurs more frequently in boys than girls and associated musculoskeletal abnormalities, spinal scoliosis is most common. Ravitch first reported correction of chondromanubrial prominence in 1952, resecting the multiple deformed costal cartilages and performing a double osteotomy on sternum. We have experienced one case of pectus carinatum and obtained satisfactory postoperative results. The deformity was corrected by the subchondral resection of multiple deformed costal cartilage, bilaterally, with single osteotomy on sternum and fracture of the posterior cortex to correct anterior angulation. Postoperative course was uneventful. We report this case with brief review of the literature.

• Journal of Biomedical Engineering Research
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• v.36 no.5
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• pp.162-168
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• 2015

In this study, we suggested the performance and safety testing guideline for low intensity pulsed ultrasound (LIPUS) represented by the ultrasound fracture treatment device and cartilage treatment device and low intensity focused ultrasound (LIFU) represented by ultrasonic face lifting device. For these study, the international standards and management regulations of Korea, Japan and United State were analyzed. And the usefulness and applicability were evaluated by testing with commercial equipment and reflecting the views of the industry and experts. As a result of this study, the safety and performance test guidelines for low intensity therapeutic ultrasound device were proposed by presenting the 10 items for LIPUS and 12 items for LIFU. The suggested guidelines are considered a high utilization in the domestic testing and approval authorities. And they are also thought to be useful to new technology development.

• Archives of Plastic Surgery
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• v.32 no.1
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• pp.37-42
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• 2005

The human nose is located in the center of the face and it's cosmetic importance is high. The contour of the nasal dorsum and side walls play a major role in the shaping of the nose, and even a slight distortion may results in significant variance of the human facies. However, in the case of patients with wide nasal bone, augmention rhinoplasty can make nasal planes look wide, resulting in bulbous appearing noses or lateral borders of the nasal implant may be visible after the surgery making the final cosmetic results unsatisfactory. To solve such problems, from march, 1999 to march, 2004, the authors have performed augmention rhinoplasty in 36 patients. The cause of operations were as follows: flat nose 20, hump nose 5, deviated nose 4, secondary rhinoplasty 7. Paramedian osteotomy was performed at a distance that was the same as the width of the implant from the midline(5 mm + 5 mm). To prevent it from connecting to the roof at the lateral osteotomy line, intentional green stick fracture of the roof was performed. Agumentation rhinoplasty was done with either Silicone or Gortex and ear cartilage as a supplement. The follow up period was 2 weeks to 13 months with an average of 5.5 months. There were no infections and postoperative bleeding. As a result, the nose was augmented higher and narrower than before which we and the patient both found highly satisfactory.

• Journal of Trauma and Injury
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• v.32 no.2
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• pp.115-117
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• 2019

Although hemothorax and pneumothorax are common complications seen in rib fractures, focal extrapleural hematoma is quite rare. We report a 63-year-old female patient that developed large focal extrapleural hematoma after falling off a second floor veranda. The patient had sustained 3, 4, 5th costal cartilage rib fractures and a sternum fracture. She had developed suspected empyema with loculations with small amount of hemothorax. She underwent a planned early decortication/adhesiolysis by video assisted thoracoscopic surgery at the 12th post-trauma day due to failed drainage. Unexpectedly, she had no adhesions or any significant retained hematoma mimicking a mass, but was found with the focal extrapleural chest wall hematoma. She was discharged on postoperative 46th day for other reasons and is doing fine today.

• Clinics in Shoulder and Elbow
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• v.26 no.4
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• pp.423-437
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• 2023

Background: Radiofrequency has seen an increase in use in orthopedics including cartilage lesion debridement in the hip and knee as well as many applications in arthroscopic shoulder surgery. The purpose of this systematic review is to evaluate the safety and usage of radiofrequency in the shoulder. Methods: This systematic review was registered with PROSPERO (international registry) and followed the preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) guidelines. Embase and PubMed were searched using: "shoulder," "rotator cuff," "biceps," "acromion" AND "monopolar," "bipolar," "ablation," "coblation," and "radiofrequency ablation." The title and abstract review were performed independently. Any discrepancies were addressed through open discussion. Results: A total of 63 studies were included. Radiofrequency is currently utilized in impingement syndrome, fracture fixation, instability, nerve injury, adhesive capsulitis, postoperative stiffness, and rotator cuff disease. Adverse events, namely superficial burns, are limited to case reports and case series, with higher-level evidence demonstrating safe use when used below the temperature threshold. Bipolar radiofrequency may decrease operative time and decrease the cost per case. Conclusions: Shoulder radiofrequency has a wide scope of application in various shoulder pathologies. Shoulder radiofrequency is safe; however, requires practitioners to be cognizant of the potential for thermal burn injuries. Bipolar radiofrequency may represent a more efficacious and economic treatment modality. Safety precautions have been executed by institutions to cut down patient complications from shoulder radiofrequency. Future research is required to determine what measures can be taken to further minimize the risk of thermal burns.

• Journal of Physiology & Pathology in Korean Medicine
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• v.22 no.1
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• pp.183-188
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• 2008

Osteoporosis is one of the major health problem affecting postmenopausal women. Estrogen deficiency results in an increase in bone turnover, lead to bone resorption and an increase risk of fracture. The aim of this study was to evaluate the effects of Platycodon grandiflorum A. extract (PG) in bone metabolism in ovariectomized estrogen-deficient rats. Two groups were surgically ovariectomized (OVX). The third group was sham operated. Sprague-Dawley female rats were randomly assigned to the following groups : sham-operated rats (Sham), ovariectomized control rats (OVX-control), ovariectomized rats supplemented with PG at 50mg/kg body wt (OVX-PG50) The Platycodon grandiflorum extracts were orally administrated at 1mL per day. The ovariectomy caused a decreasing in the levels of collagen content in bone, cartilage and skin tissues. However PG group, supplementation with Platycodon grandiflorum extract, were increased the level of collagen content in bone, cartilage and skin tissues than OVX-control group. PG group had a higher content of pyridinoline in collagen than OVX-control group. Alkaline phosphatase activity on serum were decreased after supplemented with the PG extract. These results might be expected that Platycodon grandiflorum is believed to be possible protective effects in postmenopausal bone loss.

• Journal of Life Science
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• v.16 no.7 s.80
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• pp.1219-1224
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• 2006

Osteoporosis is one of the major health problem affecting postmenopausal women. Estrogen deficiency results in an increase in bone turnover, lead to bone resorption and an increase risk of fracture. The aim of this study was to evaluate the effects of Capsosiphon fulvecense extract (SCF) on the collagen content of the connective tissues and alkaline phosphatase activity of serum in ovariectomized estrogen-deficient rats. Three groups were surgically ovariectomized (OVX). The fourth group was sham operated. Sprague-Dawley female rats were randomly assigned to the following groups : sham-operated rats (Sham), ovariectomized control rats (OVX-control), ovariectomized rats supplemented with CsF at 50mg/kg body wt (OVX-CSF50) and ovariectomized rats supplemented with CsF at 200mg/kg body wt (OVX-CSF200). The Capsosiphon fulvecense extracts were orally administrated at 1mL per day. The ovariectomy caused a decreasing in the levels of collagen content in bone, cartilage, skin and lung tissues. However CSF groups, supplementation with Capsosiphon fulvecense extract, were increased the level of collagen content in bone, cartilage, skin and lung tissues than OVX-control group. Alkaline phosphatase activity also were increased and calcium levels were decreased than OVX-control on serum. These results suggest that Capsosiphon fulvecense supplementation prevents postmenopausal bone loss, thus it may be used possibly to improve the quality of life in menopausal women.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.20 no.2
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• pp.173-183
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• 1998

$TGF-{\beta}$ is one of growth factors that may be involved in the formation of bone and cartilage. Multiple studies demonstrate that $TGF-{\beta}$ is involved in regulating cell proliferation, differentiation and matrix synthesis, events observed in frature healing. The apperance of $TGF-{\beta}$ in the fracture during healing was evaluated by immunohistologic localization of $TGF-{\beta}$ using antibody. Twenty Sprauge-Dawley strain white male rats, each weiging about 150grams were used and divided two groups. The one group, the $2{\times}2mm$ bony defect was formed in the right femur. The other group, $4{\times}2mm$ bony defect was formed in right femur. Both group were sacrificed at 3day, 1, 2, 3, 4 week and femur were harvested, paraffin sections were stained with H & E, MT stain, immunihistochemical staining with $TGF-{\beta}$ antibody and observed under light microscope. The result were as follows: 1. New bone formation and cartilagenous tissue was seen at 3day. And in the $2{\times}2mm$ bony defect group, $TGF-{\beta}$ stained the cell surounding new bone. 2. The osteoclast and trabecular was seen at 1week. $TGF-{\beta}$ stained the osteoblast and in the $2{\times}2mm$ bony defect group was stained more than $4{\times}2mm$ bony defect group. 3. The lamella bone and trabecule was seen from 3, 4week, and $TGF-{\beta}$ stained almost negative. From the above finding, we could concluded that $TGF-{\beta}$ stained the osteoblast at early stage and 1week, the peak stain was seen from 1week, and then decreased, almost negative stain was seen at 3, 4week.

• Journal of Chest Surgery
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• v.32 no.4
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• pp.399-403
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• 1999

Background: Funnel chest is one of the most common anomaly of chest wall, which is manifested by depression of sternum and costal cartilage. Popular operative methods were Ravitch operation and Wada operation. Material and Method: From 1983 to 1996, 21 cases of funnel chest were corrected surgically in the department of thoracic surgery, National Medical Center. Investigated age and sex distribution, combined anomaly,clinical symptom, degree of correction and complication, postoperative satisfaction. We used 2 different surgical methods, one was Wada & its variants(17 cases), the other was Ravitch and it variants(4 cases). Most of operative indications were cosmetic problems. Result: The pre-operative Welch index was 4.188, but this index decreased to 3.46 after the operations.(p=0.046) The degree of correction was higher in Wada & it variant operation than the modified Ravitch operation.(p=0.54) Their results were satisfactory in 20 patients, while unsatisfactory in 1 patient because of a k-wire fracture. There was no recurrence of chest wall depression or postoperative death during the OPD follow up period. Conclusion: We recommend Wada operation in symmetric and small degree of depressive chest wall deformity in preand post school age.