• 대한방사선기술학회지:방사선기술과학
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• 제7권1호
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• pp.23-33
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• 1984

In the present study, we determined reduction value of radiation on chest film by film method and made a reduction curves. The reduction radio in exposure to radiation was induced by comparative investigation of characteristic curves and reduction one. Basing on these result, we could reduce a radiation dose on body surface in 50% at the time of chest radiography, if 17.8mm aluminium or 0.87mm copper filter were used in addition to conventional filter at 140KV tube voltage. The present study further revealed that the additional use of the aluminium or copper filter at the time of high voltage radiography in chest facilitates to identify an image of some pathologic focus overlapping wist clavicle and ribs.

• Journal of Chest Surgery
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• 제17권1호
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• pp.110-117
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• 1984

A clinical evaluation was performed on 76 cases of chest injury experienced at department of Chest Surgery, Capital Armed Forces General Hospital during the past 3 years period from January 1981 to August 1983. 1.The most common cause of the chest trauma was gun shot by which 26 cases were injured among 44 cases [57.9%] of penetrating injury. Remaining 32 cases [42.1%] were injured by non-penetrating blunt trauma. 2.Hemopneumothorax was observed in 60 cases [78.9%], those were caused by both penetrating [65%] and non-penetrating [35%] injuries. 3.Rib fracture was found in 58.7% of total cases and with rib fracture, clavicle fracture was combined at 19.6% and sternal fracture, at 8.7%. 4.Most common symptoms were chest pain and dyspnea, and most common signs were breath sound diminution and subcutaneous emphysema. 5.Common site of rib fracture was from 4th rib to 8th rib [69.4%]. 6.In 58 cases [76.3%], patients were treated with operation including open thoracotomy [25 cases]. 7.Overall mortality was 5.3%[4 cases] and causes of death were septic shock and respiratory failure.

• Journal of Chest Surgery
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• 제27권10호
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• pp.888-892
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• 1994

Acquired, traumatic tracheoesophageal fistula [TEF] is rare and difficult problem to manage. This 55 years old man met with a roller accident of a tractor. During accident, he received a penetrating injury on the left upper sternal border. At local clinic, he received closed thoracotomy drainage [CTD]for relief of pneumothorax[left]. Three days after CTD, he complained abdominal pain and hematemesis. The endoscopy revealed large ulcer at the stomach, so he received subtotal gastrectomy. On 10th day post subtotal gastrectomy, he developed aspiration and coughing from a TEF. The esophagogram showed large TEF at the mid-trachea level. So he transfered to our hospital for operation. This patient was operated on for late TEF three weeks after injury. We have used absorble 4-0 Vicryl sutures to repair trachea. We repair all esophageal injuries with two layers of nonabsorbable silk suture. Where suture line on the esophagus, the strap muscle was interposed for reinforcement. And for feeding, the feeding jejunostomy was performed. Postoperatively the osteomyelitis of the manubrium site was developed, so on the 30th postoperative day, an ostectomy of manubrium, both clavicle and fight 1st, 2nd ribs, and the pectoralis major musculo-cutaneous flap coverage were performed.

• Journal of Chest Surgery
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• 제45권6호
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• pp.412-414
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• 2012

Thoracic outlet syndrome (TOS) due to thoracic trauma is a rare disorder. Surgical treatment of TOS is especially rare. We report here a case of traumatic TOS caused by right 1st rib and clavicular fracture after a traffic accident. The patient underwent first rib resection and open reduction with fixation of the clavicle through axillary and supraclavicular incisions.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2003년도 춘계학술대회 논문집
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• pp.701-704
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• 2003

Scoliosis is a complex musculoskeletal dieses requiring 3-D treatment with surgical instrumentation. Conventional corrective surgery for scoliosis was done based on empirical knowledge without information of the optimum position and operative procedure. Frequently, post operative change of rib hump increase and shoulder level imbalance caused serious problems in the view of cosmetics. To investigate the effect of correction surgery, a reconstructed 3-D finite element model for King-Moe type V was developed. Vertebrae, clavicle and other bony element were represented using rigid bodies. Kinematic joints and nonlinear bar elements used to represent the intervertebral disc and ligaments according to reported experimental data. With this model, optimization technique was also applied in order to define the optimal magnitudes of correction. The optimization procedure corrected the scoliotic deformities by reducing the objective function by more than 94%. with an associated reduction of the scoliotic descriptors mainly on the frontal thoracic curve.

• 대한기계학회논문집A
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• 제33권8호
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• pp.799-806
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• 2009

Thoracic injury from restraint loading is the principle causative factor of death, which was shown to be particularly significant for older drivers. To characterize thoracic response to belt loading of older drivers, detailed finite element models of the adult and aged thorax were developed. The geometry of the 50th percentile adult male was chosen for the adult FE model. The thoracic FE model was validated against data obtained from results of PMHS pendulum impact tests. The quantified patterns of age-related shape and well-established material changes were applied to the adult model to develop the aged model. Belt force and chest deflection were applied to the developed two types of models. Rib and clavicle fracture risk obviously increased in the aged model. This finding showed that larger rib angle and reduced material properties of the ribcage produced more higher risk of injury in the older driver.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제37권
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• pp.41.1-41.6
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• 2015

Cleidocranial dysplasia is an autosomal dominant heritable skeletal disorder. The characteristic features of cleidocranial dysplasia (CCD) may include hypoplasia of the clavicle, delayed closure of frontanelles, late tooth eruption, and other skeletal disorders. This case report describes clinical and radiographic manifestations at the age of 11 and 29 of a CCD patient, investigates the mutation of core-binding factor A1 (CBFA1) based on gene analysis, and illustrates successful oral reconstruction with fixed prosthesis and dental implant after the extraction of multiple teeth.

• Journal of Oral Medicine and Pain
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• 제24권1호
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• pp.1-8
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• 1999

The authors experienced a diagnosis of a benign form of osteopetrosis based on the comprehensive data obtained from (1) clinical examination, (2) radiological and nuclear medicinal findings of the thickening of cortex of mandible, femur, clavicle, and the increased bone density of mandible, maxilla, cranial base, calvarium, lumbar, femur, and additionally (3) histopathological findings of sclerotic bony tissue in a Korean male of 38-year-old.

• 대한두경부종양학회지
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• 제3권1호
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• pp.85-90
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• 1987

The syndrome of inappropriate ADH secretion(SIADH) is a clinical disorder in which there is continual release of antidiuretic hormone(ADH) unrelated to plasma osmolality. It may occur usually in association with malignant tumors below the clavicle and other pulmonary disorders which are capable of synthesizing, storing and releasing ADH into the circulation but rarely with the head and neck tumors yet. We experienced a patient with unexplained hyponatremia associated with laryngeal carcinoma. The clinical and laboratory diagnostic studies suggested that patient's sodium deficiency was secondary to the SIADH. Subsequent resection of the neoplasm, total laryngectomy led to resolution of hyponatremia, suggesting that a tumor associated humoral factor, such as vasopressin or vasopressin like substance, was responsible for the electrolyte disturbance.

• Journal of Chest Surgery
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• 제14권2호
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• pp.123-126
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• 1981

190 cases of the thoracic injuries experienced at the department of chest surgery, Chungnam National University Hospital, for 5 years from Jan. 1976 till Dec 1980, were analysed. The results are as follows; 1. The incidence rate of male to female was 5.1:1. The common age groups were 3rd, 4th and 5th decades, and the most common age group in the penetrating injury was 3rd decade. 2. The most common mode of the nonpenetrating injuries was a traffic accident [63.0%], and the most commonly used tool in the penetrating injuries is a knife [66.7%]. 3. The most common nonpenetrating injury was rib fracture [73.9%], and the common fracture sites were 5th, 6th, 7th and 8th ribs [especially, 7th rib]. The incidence rate of flail chest was 15% of the cases of the rib fractures. 4. The common associated injuries of the nonpenetrating were long bone fracture [18.3%], brain contusion [15.9%], and clavicle fracture etc.. 5. The common method of surgical treatment were closed thoracostomy [46.7%], thoracentesis, and open thoracotomy [7.4%] etc.. 6. The overall mortality was 2.8%. [Nonpenetrating; 0.8%, Penetrating; 6.3%]