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김연환,김경회,김상화 대한두개안면성형외과학회 2017 Archives of Craniofacial Surgery Vol.18 No.2
The ideal scalp reconstruction involves closure of the defect with similar hair-bearing local tissue in a single step. Various reconstructions can be used including primary closure, secondary healing, skin grafts, local flaps, and microvascular tissue transfer. A 53-year-old female patient suffered glioblastoma, which had recurred for the second time. The neurosurgeons performed radial debridement and an additional resection of the tumor, followed by reconstruction using a serratus anterior muscle flap with a split-thickness skin graft. Unfortunately, the flap became completely useless and a bilateral rotation flap was used to cover the defect. Two month later, seroma with infection was found due to recurrence of the tumor. Additional surgery was performed using multiple perforator based island flap. The patient was discharged two weeks after surgery without any complications, but two months later, the patient died. Radical surgical resection of tumor is the most important curative option, followed by functional and aesthetic reconstruction. We describe a patient with a highly malignant tumor that required multiple resections and subsequent reconstruction. Repeated recurrences of the tumor led to the failure of reconstruction and our strategy inevitably changed, from reconstruction to palliative treatment involving fast and stable wound closure for the patient’s comfort.
Lateral Osteotomy with Sawing Technique in Open Rhinoplasty
김연환,이학승,김정태,Kim, Youn-Hwan,Lee, Hak-Sung,Naidu, Shenthilkumar,Kim, Jeong-Tae Korean Society of Plastic and Reconstructive Surge 2010 Archives of Plastic Surgery Vol.37 No.4
Purpose: Lateral osteotomy is an essential step in the correction of nasal bony asymmetry. Direct visualization allows accurate repositioning of the nasal bones compared to blind techniques, which require precision and manual dexterity. We propose direct visualization procedures in open corrective rhinoplasty. Methods: The technique was used on 16 patients. All patients underwent open rhinoplasty with a columellar incision. The marginal incisions were extended on either side to allow access to the piriform aperture. A double hook was used to caudally retract the lower lateral cartilages and the fibrous connections between the upper and lower lateral cartilages were released until the piriform aperture was visualized. Through the incision, lateral osteotomy was performed using a reciprocating saw at that time with direct visualization. Additional procedures including augmentation rhinoplasty, hump resection, septoplasty and tip plasty were performed simultaneously. Results: This method provided excellent exposure to the lateral nasal bones and allowed the lateral osteotomy to be carried out precisely using the reciprocating saw. Conclusion: This extended open rhinoplasty method is suitable for most individuals, allowing a wide surgical field.
하악각 골절 술후 발생한 비대칭의 하악각 축소술을 이용한 교정 증례
김연환,이학승,김정태 대한두개안면성형외과학회 2010 Archives of Craniofacial Surgery Vol.11 No.1
Purpose: After surgical interventions of mandible fractures,facial asymmetry can be occurred, and it leads to serious problems for patients. This can be solved by mandible angle ostectomy. Methods: A 19-year-old male underwent percutaneous surgical intervention for left mandibular angle and right parasymphyseal fractures 3.5 years ago. The left angle was protruded compared to the other side. Using a percutaneous approach, 4.5 × 1 cm sized piece of mandible angle was sawed off. For the right angle, intraoral approach was performed for angle ostectomy, and the angle was sawed off by a size of 4 × 1 cm, using a pattern based on the piece from the left side. Results: After surgery, no complications such as subcondylar fractures, refractures, insufficient corrections,secondary angle formations, hematomas, and transient nerve palsies were seen, and symmetric correction of mandible angles were done. Conclusion: In facial asymmetries due to mandibular fractures, mandible ostectomy could be a solution. Using the bone section from the contralateral side, measurement of the amount of bone sawed off was possible, and via percutaneous approach on the previously operated site with simultaneous scar revision, and intraoral approach for the contralateral side, cosmetically satisfactory result was obtained. (J Korean Cleft Palate Craniofac Assoc 11: 45, 2010)
色光이 人體에 미치는 影響에 대한 연구 - 적색 광과 청색 광 중심으로 -
김연환,조세은,진선희 한국색채디자인학회 2007 한국색채디자인학회 학술대회 Vol.2007 No.1
빛은 광자들로 이루어진 하나의 전자기파로서 우리가 색을 인지할 수 있도록 할 뿐 아니라 신체 내부의 대사 활동에도 큰 역할을 한다. 지구상의 모든 물체, 즉 생물과 무생물들은 각자 고유한 진동 주파수를 지닌다. 즉 살아 있는 모든 세포와 조직, 기관, 그 밖 의 인간의 신체 부위는, 건강할 때 각각의 고유한 진동 주파수를 지니며 질병 또한 스트레스에 대한 신체의 자연스런 반응인, 일종의 변형된 생리적 기능이고, 단지 스트레스를 일으키는 자극 때문에 발생되는, 높아지거나 낮아지거나 하는 진동 주파수의 변화일 뿐이다. 즉 인간은 끊임없이 색광을 통한 진동 주파수를 통하여 신체의 건강한 항상성을 유지하려고 한다. 따라서 본 연구에서는 인공 광선을 이용한 색채 치료의 방법 중에서도 가장 뚜렷하게 대비되는 효과가 있는 적색 광과 청색 광을 중심으로 성인의 혈압과 맥박과 체온의 변화를 알아보고자 하였다. 이로써 색에 대한 인체 생리적 변화를 알게 되어 우리 몸의 색광에 의한 현상들을 조명하고자 한다. 그리하여 본 연구를 통하여 특정한 색광이 지니고 있는 진동 주파수가 신체에 미치는 영향이 있음을 명백하고 분명하게 나타내고 있음을 증명하고자 한다