저온 열처리 자가 종양골이식을 이용한 이마뼈의 단골성 섬유성이형성증의 재건

이의태 대한두개안면성형외과학회 2010 Archives of Craniofacial Surgery Vol.11 No.2

Purpose: For the best possible aesthetic reconstruction after craniofacial bone tumor resection,pasteurization has been adopted to devitalize neoplastic cells while maintaining osteoinductive properties and mechanical strength. This case report aims to demonstrate a long-term follow-up result of a monostotic fibrous dysplasia in frontal bone which was reconstructed by pasteurized tumoral autograft in situ. Methods: A 14-year-old girl presented with a hard, nontender, slowly growing mass of 6-year duration on her left supraorbital area. CT showed 5 x 4 x 3 cm sized well defined bony mass confined to frontal bone with heterogeneous density. Tumor was excised completely through bicoronal approach and reimplanted to its original site after pasteurization at 60˚C for 30 minutes. The pathologic examination confirmed fibrous dysplasia. Results: She revisited our clinic 5 years later after suffering some assault on her face. On CT examination,pasteurized tumoral autograft was incorporated to host bone except the fractured upper orbital rim without any evidence of recurrence. She has been satisfied with the result. Conclusion: Pasteurization offers a simple, reliable, cosmetic, economic, and durable reconstruction method for craniofacial skeletal tumor. It has advantages of both biologic incorporation ability and mechanical strength without risk of recurrence. So, it should be considered as one of the primary options in benign as well as resectable malignant tumors of craniofacial skeleton. (J Korean Cleft Palate Craniofac Assoc 11: 91, 2010)

광 회절 단층 촬영을 이용한 귀뚜라미 혈구 세포의 정량 분석

이의태 한국응용곤충학회 2017 한국응용곤충학회 학술대회논문집 Vol.2017 No.10

척추동물의 혈구 세포의 특성은 활발히 연구되었지만, 곤충의 혈구 세포의 부피, 헤모글로빈의 양, 3차원 구조에대한 특성은 아직 잘 알려지지 않았다. 본 연구에서는, 주변에서 쉽게 구할 수 있는 곤충인 귀뚜라미를 대상으로하여 곤충의 혈구 샘플을 얻기 위한 실험 프로토콜을 제시하였으며, 광 회절 단층 촬영 (optical diffraction tomography)현미경 기술을 이용해 곤충의 혈구 세포의 3차원 구조를 정량적으로 측정하였다. 본 실험에서는 귀뚜라미의 혈구세포의 부피, 표면적, 구형도, 헤모글로빈 농도, 그리고 헤모글로빈 총량을 측정하였다. 측정된 다섯 개의 적혈구지표는 사람이나 쥐의 적혈구 지표와 유의미한 차이를 보였다.

성형외과 영역에서의 정맥마취의 안전성에 대한 연구

이의태 충북대학교 의과대학 충북대학교 의학연구소 2011 忠北醫大學術誌 Vol.21 No.1

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이층 흉터성형술

이의태 충북대학교 의학연구소 2009 忠北醫大學術誌 Vol.19 No.1

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뇌경막 화상의 치유과정에 관한 임상 및 실험적 연구

이의태,진웅식,이윤호 대한화상학회 2003 대한화상학회지 Vol.6 No.2

수술방법에 따른 선천성 안검하수 수술결과 비교분석

이의태 충북대학교 의학연구소 2010 忠北醫大學術誌 Vol.20 No.1

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Application of Mini-Abdominoplasty Technique After Conservative Excision of a Large Cesarean Scar Endometriosis

이의태,Hyun Min Park,Dong Geun Lee,Kyung Jin Shin,Hak Soon Kim,Ro Hyun Sung,Dong Hee Ryu 대한성형외과학회 2012 Archives of Plastic Surgery Vol.39 No.5

Endometriosis is defined as the presence of functioning endometrial tissue outside the uterine cavity, and the standard treatment is extensive surgical excision. Cesarean scar endometriosis is a type of cutaneous endometriosis arising on or near a Cesarean section scar. A 44-year-old woman presented with a 9×6 cm sized dark-brown, stony-hard, irregular, lower abdominal mass of four years duration. The patient had a history of two Cesarean deliveries, 14 and 16 years ago. Suspecting endometriosis, we excised the tumor conservatively rather than extensively to prevent incisional hernia considering the benign nature of the tumor and the low possibility of recurrence because the patient’s age was near menopause, along with simultaneous bilateral salpingo-oophorectomy that was performed in this case. On reconstruction, mini-abdominoplasty was adopted to avoid possible wound complications and cosmetic deformities. The patient was satisfied with the cosmetic results, and neither recurrence nor functional problems occurred during the 1-year follow-up period. Plastic surgeons should keep in mind the possibility of cutaneous endometriosis in an abdominal mass of a female of reproductive age with a previous history of pelvic or intra-abdominal surgery. An optimal result from oncological, functional, and cosmetic standpoints can be achieved with conservative excision followed by mini-abdominoplasty of extensive Cesarean scar endometriosis.

포괄적 두개성형술 개념을 이용한 클로우버잎 모양 두개기형의 수술적 치료

이의태 대한성형외과학회 2003 Archives of Plastic Surgery Vol.30 No.6

Cone beam형 전산화단층촬영에 의한 흡수선량

이의태,김규태,최용석,황의환 대한구강악안면방사선학회 2007 Imaging Science in Dentistry Vol.37 No.2

Purpose : To measure the absorbed doses of cone beam computed tomography (CBCT), which is recently being more frequently used, and to compare them with those of panoramic radiography. Materials and Methods : To measure the absorbed doses of CBCT (PSR-9000N, Asahi Roentgen Ind. Co., Japan), we placed TLD chips on the skin regions above the parotid and thyroid glands, and on the dorsum of tongue in a dental head phantom. We used two image acquisition modes of the Dental and Panoramic modes of CBCT, which differed in the field of view. Also, panoramic radiographs (Auto IIIN, Asahi Roentgen Ind. Co., Japan) were taken to compare with the absorbed doses of CBCT. Result : In the Dental mode of CBCT, the absorbed doses of the parotid gland, dorsum of tongue, and thyroid gland were 3.53, 3.13, and 0.36 mGy, respectively. In the Panoramic mode of CBCT, they were 9.57, 9.15, and 0.85 mGy, respectively. The panoramic mode showed higher absorbed doses than those of the Dental mode. In the panoramic radiography, the absorbed doses of the parotid gland, dorsum of tongue, and thyroid gland were 1.21, 1.19, and 0.16 mGy, respectively. And they were about 1/3 of the Dental mode and 1/9 of the Panoramic mode of CBCT. Conclusion : Absorbed doses of CBCT are higher than those of panoramic radiography, and dependent upon the field of view.

안와파열골절의 수복에서 In Split Rib Bone Graft 의 이용

이의태,이윤호 충북대학교 의과대학 충북대학교 의학연구소 2005 忠北醫大學術誌 Vol.15 No.2

Purpose: The ideal material in orbital blowout fracture should be flexible, easy to sculpture, strong enough to support the herniating orbital soft tissue, and adequately voluminous to avoid enophthalmos and damage of orbital contents. To satisfy these mechanical and physical requirements with an autogenous material and to minimize donor site morbidity and complication, the author developed in situ split rib bone graft (ISRBG). Materials and Methods: From 1996 to 2003, fifteen patients with pure orbital blowout fracture (30±12years) underwent repair of the fracture with ISRBG. These patients were available for follow-up at least 2 months. Results: Preoperative ophthalmologic evaluation showed diplopia in 12 patients and enophthalmos in 8 patients. Three patients with combined medial and inferior wall fracture revealed persistent diplopia on extreme gaze at the last follow-up, but out of their cardinal fields of vision. Enophthalmos did not continue in any patient postoperatively. Otherwise, there were no immediate or delayed recipient complications of hemorrhage, infection, extrusion, and displacement of bone graft. There were no functional, cosmetic and infectious donor site complications. Conclusion: For 8 years, ISRBG proved itself a safe, reliable, and versatile material in repair of orbital blowout fractures. With its excellent physical and mechanical properties and minimal donor site complication, ISRBG is the best option between autogenous material with possibility of serious donor and recipient complications and alloplastic implants with little biocompatibility and greater economic burden especially in complex three dimensional defect in extensive blowout fracture cases. 연구목적: 안와파열골절의 수복에서 이상적인 물질은 유연하고 모양을 만들기 용이하며 탈출하는 안와연부조직을 지지할 수 있는 강도를 가져야 한다. 도한, 안구함몰과 안와조직손상을 모두 방지할 수 잇을 정도의 적당한 부피를 가져야 한다. 이러한 기계적이고 물리적인 조건을 만족하는 자가물질로서 공여부의 부작용을 최소화하기 위하여 저자는 in split rib bone graft (ISRBG)를 개발하였다. 대상 및 방법: 1996년에서 2003년까지 15명(30±12세)의 단순 안와파열골절 환자를 대상으로 ISRBG를 이용하여 골절을 수복하였다. 이들 환자들을 최소 2개월이상 경과를 관찰하였다. 결과: 수술전 안과적 검사상 12명에서 복시, 8명에서 안구함몰을 관찰할 수 있어다. 안와안쪽벽과 아래쪽 벽의 복합적 골절을 가진 3명의 환자에서 술후 시야의 변방에서 복시가 관찰되었으나 기본 안위에서는 이상이 없었다. 안구함몰은 술후 모두 교정되었다. 그 외 즉각적인 또는 지연성의 출혈, 감염, 골이식편의 돌출, 변위 등 수혜부 부작용은 없었다. 공여부의 기능적, 미용적 부작용 역시 관찰할 수 없었다. 결론: 8년동안에 걸쳐 ISRBG는 안전하고, 믿을 만한, 다목적의 안와파열골절 수복용 물질로 사용할 수 있었다. ISRBG의 우수한 물리적, 기계적 성질과 최소한의 공여부 부작용을 고려할 때 광범위한 안와파열골절의 복잡한 3차원적 골결손 부위에 사용할 수 있는 가장 우수한 물질 가운데 하나로 볼 수 있다.