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자가장골과 하상복혈관을 이용한 신혈류화골판 형성에서 시간경과에 따른 골 및 혈관 분포 변화에 관한 연구
김운규(Woon Gyu Kim),이종호(Jong Ho Lee),김종원(Jong Won Kim) 대한구강악안면외과학회 1998 대한구강악안면외과학회지 Vol.24 No.4
Generally fabrication of neovascularized bone flap are produced by sandwiching vessels between bone segment with the optimal size and shape for the recipient sites. When these flaps are transferred to the recipient site, they are again isolated from the surrounding soft tissues, resulting not only decrease in the blood flow to bone segments by sacrifices of peripheral blood circulation due to elevation of flap, but also possible changes of shape of osseous flap by bone resorption. To overcome these disadvantage, it may be considerable to block bone segment off from the surrounding soft tissues. Purpose of this study are observed time-dependent changes of blood flow, vascularity and histologic finding of bone flaps using the autogenous bone and local vessel implantation. The results are compared with bone flap which had not been blocked off from surrounding soft tissues. Neovascularized bone flap were fabricated in 90 Sprague-Dawley rats using autogenous iliac bone and superficial inferior epigastric vessels. The experimental flaps were wrapped with silastic sheets to block neovascularization from surrounding soft tissues, and the control flaps were left unwrapped. The degree of bone formation, vascularity and blood flow were then assessed at 1, 2, 4, 6 and 8 weeks after flap fabrication, using a histological examination, microangiogram, corrosion cast study and radioactive microspheres. When fabricating a neovascularized bone flap using the autogenous iliac bone and the superficial inferior epigastric vessels, the physico-histological organization, vascularity and blood flow of neovascularized flaps were same or superior for wrapped than for unwrapped bone segments until the 4th week after grafting, This means that the period of neovascularization can be lengthened by the 4th weeks in the fabrication of bone segments, which can be blocked off from surrounding soft tissues. For these reasons, blocked bone flap fabrication can be considered to be superior to the conventional method.
여환호(Hwan Ho Yeo),김운규(Woon Gyu Kim) 대한구강악안면외과학회 1992 대한구강악안면외과학회지 Vol.18 No.2
The patient was diagnosed as squamous cell carcinoma on the left palate and Lt. maxilla with T₄N₀M₀, stage Ⅳ. After 2 cycles of chemotherapy, we performed total maxillectomy under general anesthesia. During the operation, the anterior ethmoid bone was removed, and then cerebrospinal fluid leaked. The perforated site was plugged with surgical, gelform, and temporal muscle. The plain skull film and computerized tomogram provided prompt diagnosis as subdural pneumocephalus. As the fluid pours out, air bubbles fills to the top of the container and the possible mechanism for entry of air into the intracranial compartment is analogous to the entry of air into an inverted bottle. Pneumocephalus appears to be one possible complication during total maxillectomy of the ethmoid bone involved.
여환호,길병동,김운규 朝鮮大學校 口腔生物學硏究所 1989 口腔生物學硏究 Vol.13 No.-
Trigeminal neuralgia (tic douloureus', is a painful paroxysm of one of the branches(usually, the second or third division) of the trigeminal nerve, and the neuralgia may related to disseminated (multiple) sclerosis, to anoxia from vasospasm. or to ischemia from other casuses in the region of the gasserian ganglion or sensory root. Trigeminal neuralgia has been treated by drugs, nerve injections, surgery, and acupuncture. The drugs used in the past, such as as diphenylhydantoin(Dilantin), have largely been supplanted by carbamazepine(Tegretol), and it has proven remarkably effective in controlling the pain of trigeminal ueuralgia. Nerve blocks of the trigeminal ganglion that use alcohol, phenol, or hot water have also been reported to bring relief. Trigeminal tractotomy may or may not relieve the condition. However, surgical division of the sensory root in the medulla oblongata gives permanent relief. Other forms of treatment include trigeminal decompression and percutaneous electrocoagulation to cauterize the trigeminal nerve. Peripheral neurectomy is an effective treatment of trigeminal neuralgia because it interrupts the flow of a significant number of afferent impulses to the central trigeminal apparatus. We had performed peripheral neurectomy in a case. The pain free period obtained by peripheral neurectomy and the drugs (carbamazepine) in patient with trigeminal neuralgia and orofacial pain is significant. The purpose is to report our observatoni on the case report and the effectiveness of peripheral neurectomy of buccal nerve.