• 대한족부족관절학회지
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• 제20권3호
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• pp.100-105
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• 2016

Syndesmotic injury can either be isolated or associated with bony or ligamentous ankle injury. When it is not associated with an ankle fracture, it may not be easy to diagnose, especially when there is no franck diastasis on a plain radiograph. Without proper treatment, syndesmotic injury can lead to chronic pain due to impingement of scar tissues and instability. It may further lead to ankle arthritis. Early diagnosis with appropriate management is a prerequisite to avoid these problems. Herein, we review and discuss the mechanism of injury, classification, diagnosis, and treatment of isolated syndesmotic injury.

• Clinics in Shoulder and Elbow
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• 제4권2호
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• pp.196-198
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• 2001

Synovial chondromatosis is the chondroid metaplasia of the synovial membrane, Large joints such as the knee and hip are commonly involved. Synovial chondromatosis very rarely develops within the shoulder joints. We have experienced the synovial chondromatosis developed in the right subscapular recess communicating the shoulder joint of a 30 year-old-female who was diagnosed by plain radiograph, MRI and microscopic findings, and then treated by arthroscopic synovectomy and removal of loose bodies.

• Journal of Trauma and Injury
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• 제26권1호
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• pp.30-33
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• 2013

A 55-year-old woman was seen in the emergency department with posterior neck pain and a headache after a traffic accident. Physical examination revealed tenderness on palpation over the posterior skull and a midline spinous process of the cervical spine without neurologic deficit. A plain radiograph of the cervical spine demonstrated the absence of the lateral portion of the posterior arch of the atlas and very lucent shadowing of the anterior midline of the atlas, suggesting a fracture of the anterior arch. On three-dimensional computed tomography (CT) of the cervical spine, anterior and posterior bony defects of the atlas were noted. Well-corticated defects were noted with sclerotic change and with no evidence of soft tissue swelling adjacent to the bony discontinuities, consistent with a congenital abnormality. With conservative therapy, the patient gradually showed a lessening of the midline tenderness. Careful investigation with radiography or CT is needed for these patients to avoid confusion with a fracture, because these patients seldom need surgical treatment.

• 한국임상수의학회지
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• 제19권2호
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• pp.253-255
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• 2002

A 10-year-old, female mixed breed dog and a 3-year-old, female chihuahua which had swelling below lower eyelid were refered to Veterinary Medical Teaching Hospital, Seoul National University. The plain maxillary oblique view revealed radiolucency at periapical area in maxillary fourth premolar. The 2 cases were diagnosed as periapical abscess by clinical sign and radiographs, and apicoectomies were performed for resetting the lesions and preserving the teeth. Under general anesthesia with isoflurane, periapical abscess was resected by burs and the defect was filled with zinc phosphate cement. Radiograph was perfomed at 1 week and 1 year after apicoectomy and there was no evidence of recurrence.

• Advances in pediatric surgery
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• 제14권2호
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• pp.183-188
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• 2008

Wandering spleen is very rare condition in children characterized by migration of the spleen from its normal position due to laxity or absence of the supporting splenic ligaments. We experienced a case of splenic infarction due to torsion of a wandering spleen in a 6-year-old boy who presented with fever, vomiting, and abdominal pain of 2 day's duration. On physical examination, there was severe tenderness in the left upper quadrant of the abdomen. The plain abdominal radiograph showed marked colonic gaseous distension. Contrast-enhanced abdominal computed tomography scan showed decreased density of spleen in the normal position, consistent with infarction. At emergency laparotomy, a wandering spleen twisted $360^{\circ}$ on its pedicle was found. Despite splenic detorsion, blood flow could not be restored. Splenectomy was therefore performed. The child was discharged 7 days after surgery without any complications.

• Tuberculosis and Respiratory Diseases
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• 제57권4호
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• pp.381-385
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• 2004

저자들은 클렙시엘라균종에 의한 폐렴에 동반된 폐 괴저를 수술적 치료없이 약물로만 호전시킨 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

• 대한골관절종양학회지
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• 제9권2호
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• pp.200-205
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• 2003

목적: 근위 비골에 발생한 거대 세포종 환자 5명에 대한 임상 양상, 치료 방법 및 결과를 보고하고자 한다. 대상 및 방법: 1997년 1월부터 2001년 7월까지 근위 비골에 발생한 거대 세포종으로 수술적 치료를 하였던 환자 중 1년 이상 추시관찰(평균 2.2년: 1.1~5년)이 가능하였던 5예를 대상으로 하였다. 모든 예에서 수술 전 단순 방사선 검사, 자기 공명 영상 검사, 핵의학 검사를 시행하였다. 모든 예에서 비골 신경을 보존하면서 일괄 절제술 및 대퇴 이두근을 이용한 외측 측부 인대 재건술을 시행하였다. 수술 후 단순 방사선 검사 및 진찰 소견으로 국소 재발의 유무를 판단하였으며 내반 스트레스 검사로 슬관절 외측 불안정을 측정하였다. 결과: 환자의 평균 연령은 23세(21~29세)였으며 남자 1예, 여자 4예였다. 모든 환자에서 병변부의 동통이 주증상이었으며 2예에서는 종물이 촉지되었다. 모든 예에서 수술 전 자기 공 명 영상 검사상 T1 강조영상에서 병변내의 저 신호 강도와 T2 강조영상에서 고 신호 강도를 보였고, Technetium-99 m을 이용한 골주사 검사상 비정상적으로 증가된 골섭취 소견이 관찰되었다. 1예에서 수술 후 일시적 비골 신경 마비를 보인 경우를 제외하고 나머지 예에서 비골 신경 마비 및 종양의 국소 재발은 보이지 않았다. 최종 추시 관찰시 5예중 1예에서 다소의 외측 불안성이 있었으나 기능상 문제가 없었으며 나머지 4예에서는 내반 스트레스 검사상 안정성을 보였다. 결론: 근위 비골에 발생한 거대 세포종은 비골 신경을 보존하면서 일괄 절제술 및 대퇴 이두근을 이용한 외측 측부 인대 재건술을 시행하여 좋은 결과를 보였다.

• Korean Journal of Radiology
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• 제23권3호
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• pp.343-354
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• 2022

Objective: To develop and evaluate a deep learning-based artificial intelligence (AI) model for detecting skull fractures on plain radiographs in children. Materials and Methods: This retrospective multi-center study consisted of a development dataset acquired from two hospitals (n = 149 and 264) and an external test set (n = 95) from a third hospital. Datasets included children with head trauma who underwent both skull radiography and cranial computed tomography (CT). The development dataset was split into training, tuning, and internal test sets in a ratio of 7:1:2. The reference standard for skull fracture was cranial CT. Two radiology residents, a pediatric radiologist, and two emergency physicians participated in a two-session observer study on an external test set with and without AI assistance. We obtained the area under the receiver operating characteristic curve (AUROC), sensitivity, and specificity along with their 95% confidence intervals (CIs). Results: The AI model showed an AUROC of 0.922 (95% CI, 0.842-0.969) in the internal test set and 0.870 (95% CI, 0.785-0.930) in the external test set. The model had a sensitivity of 81.1% (95% CI, 64.8%-92.0%) and specificity of 91.3% (95% CI, 79.2%-97.6%) for the internal test set and 78.9% (95% CI, 54.4%-93.9%) and 88.2% (95% CI, 78.7%-94.4%), respectively, for the external test set. With the model's assistance, significant AUROC improvement was observed in radiology residents (pooled results) and emergency physicians (pooled results) with the difference from reading without AI assistance of 0.094 (95% CI, 0.020-0.168; p = 0.012) and 0.069 (95% CI, 0.002-0.136; p = 0.043), respectively, but not in the pediatric radiologist with the difference of 0.008 (95% CI, -0.074-0.090; p = 0.850). Conclusion: A deep learning-based AI model improved the performance of inexperienced radiologists and emergency physicians in diagnosing pediatric skull fractures on plain radiographs.

• Journal of Korean Neurosurgical Society
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• 제42권2호
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• pp.97-102
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• 2007

Objective : The authors attempted to evaluate the pattern of the airway narrowing due to prevertebral soft tissue swelling after surgery of the anterior cervical spine and their clinical significances using plain cervical X-ray images. Methods : Twenty-four patients undergoing anterior cervical spine surgery were reviewed from January 2004 to December 2005. Postoperatively, in daily basis, lateral radiograph of the neck was obtained in neutral position. We measured the upper airway diameter above and below the epiglottis level and prevertebral soft tissue diameter every day for a week and finally 2 weeks after surgery using their simple lateral cervical X-ray films. Results : Both airway narrowing and prevertebral soft tissue swelling were maximum in postoperative 2 days, and decreased rapidly in postoperative 7 days. Airway narrowing was aggravated postoperatively but slowly decreased as prevertebral soft tissue swelling diminished. But, the severity of airway narrowing showed no clinical correlations with clinical symptom and radiologic severity. Conclusion : Not all patients who show severe airway narrowing and prevertebral soft tissue swelling on their plain cervical X-ray film complain respiratory insufficiency. But, the patients with undergoing anterior cervical spine surgery should be monitored carefully for respiratory insufficiency, especially during several days following operation because both airway narrowing and prevertebral soft tissue swelling become peak at postoperative 2-3 days.

• 대한골관절종양학회지
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• 제16권1호
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• pp.47-50
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• 2010

섬유형성이상은 골수가 섬유-골성 조직으로 치환되는 흔한 양성 골 질환이다. 암환자에서 병기의 결정과 추적 검사 시 암 전이의 발견에 PET/CT의 역할이 증가됨에 따라 우연히 발견된 FDG 섭취 증가를 보이는 섬유형성이상에서 암 전이와의 감별이 중요하다. PET/CT를 시행한 46세의 유방암 환자에서 좌측 대퇴골에 국소 FDG 섭취를 보여 암 전이로 의심되었으나 단순촬영과 자기공명 영상 소견에서 섬유형성이상으로 진단한 환자의 증례를 보고하고자 한다. 이 환자에서 단순활영과 자기공명영상 소견은 PET/CT에서 유방암 전이로 오인된 섬유형성이상의 감별에 도움이 되었다.