• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제47권4호
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• pp.327-334
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• 2021

A transparotid approach, with a retromandibular or preauricular incision, is an alternative surgical approach for treating a subcondylar fracture and reducing the potential for complications such as injury to the facial nerves. However, retromandibular and preauricular incisions are both created far away from the parotid gland-dissection area. Thus, it is necessary to undermine the skin and retract it anteriorly to access the surgical field. Here, we introduce a modified approach wherein the incision allows for direct access to the fracture site. This approach may be adopted to shorten the incision length, reduce the retraction trauma at the surgical site, and help prevent injury to the facial nerve.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제41권
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• pp.60.1-60.6
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• 2019

Background: The lingual nerve plays an important role in multiple functions, including gustatory sensation and contact sensitivity and thermosensitivity. Misdiagnosed conservative treatments for serious lingual nerve (LN) injuries can induce the patient to serious mental disability. After continuous observation and critical diagnosis of the injury, in cases involving significant disruption of lingual nerve function, microneurosurgical reconstruction of the nerve is recommended. Direct anastomosis of the torn nerve ends without tension is the recommended approach. However, in cases that present significant gaps between the injured nerve ends, nerve grafts or conduits (tubes of various materials) are employed. Recently, various reconstruction materials for peripheral nerves were commercially offered especially in the USA, but the best method and material is still unclear in the world. There currently exists no conventional protocol for managing LN neurosensory deficiency in regard to optimal methods and the timing for surgical repair. In Japan, the allograft collagen nerve for peripheral nerves reconstruction was permitted in 2017, and we tried to use this allograft nerve and got a recommendable result. Case presentation: This report is a long-term abandoned torn LN reconstructed with allograft nerve induced by the lower third molar extraction. Conclusions: In early sick period, with the exact diagnosis, the LN disturbance should be managed. In a serious condition, the reconstruction with allograft nerve is one of the recommendable methods.

• The Korean Journal of Pain
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• 제9권2호
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• pp.423-425
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• 1996

Tic convulsif is a syndrome restricted to paroxysmal dysfunction of the fifth and seventh cranial nerves. It occurs predominantly in women over the age of 50 years and is usually associated with an ectatic vertebrobasilar artery - less frequently an arteriovenous malformation or cholesteatoma - which compresses the trigeminal and facial nerve roots in the postetior fossa. In rare instances this syndrome may be caused by brain tumor. Because of the high incidence of posterior fossa lesions in painful tic convulsif, a complete neurological evaluation including computerised transaxial tomography should be performed in every case. We experienced a case of trigeminal neuralgia(mandibular division)and contralateral hemifacial spasm.

• Journal of Korean Dental Science
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• 제6권2호
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• pp.58-66
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• 2013

Purpose: The inferior alveolar nerve (IAN) can be damaged as a result of minor oral surgical procedure such as third molar extraction or implant placement. Repair of the injured IAN involves difficulty of access, and research studies are limited to elucidating the process of regeneration by surgical methods. This study sought to establish the rabbit animal model to apply polymeric membrane functionalized with nerve growth factor after a crush lesion for the evaluation of nerve regeneration using the electrophysiologic method. Materials and Methods: The IAN of 2 adult male New Zealand white rabbits (4 nerves) were exposed bilaterally, and crush injury rendered by jeweler's forceps was applied. Nerve conduction velocity was examined electrophysiologically using electromyography before, after, and 4 weeks after the crush injury. To evaluate the regeneration, the pattern of action potential of IAN was recorded, and the characteristics of neurons were histologically observed. Result: After the crush injury, afferent activity decreased in the injured group. Electromyography could not be recorded after four weeks because tissues surrounding the injured nerve collapsed. Decrease in the mean number of axons was observed in the injured part with membrane. Conclusion: Despite the limited result, the present animal model study may provide a possible way to research on the methods of enhancing the recovery of nerve injuries in clinical situations. For clinically widespread acceptance, however, it should gain more consecutive and scientific evidences.

• 대한수의학회지
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• 제40권1호
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• pp.27-34
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• 2000

A 20-day-old female Diprosopia in Holstein calf was observsd macroscopically and radiographically. Anterior head duplication(Diprosopia) was observed and all structures caudal to it were normal. She had two muzzles, three eyes, two ears and two tongues. The tongues were joined at their base just posterior and had one hyoid bone. Schistognathia and cleft lips were also observed in the lower jaws. She had an oral cavity, single epiglottis and a laryngeal cavity communicated with one trachea. The cerebral hemispheres were duplicated and fused together in the caudal region. The olfactory and optic nerves were duplicated. The incisive, nasal, pterygoid, parietal, ethmoid bones and vomer were duplicated, respectively. The skull of Diprosopia was shared by an occipital bone. The mandibules, palatines and sphenoid bones were duplicated incompletely. Three orbits and two fontanelles were observed. The medial lacrimal bones and maxillae were duplicated incompletely and fused with each other, respectively. Cleft palates were observed. Medial mandibular mass which was fused together and was duplicated incompletely at the part of its cranial, was shown synchondrosis with the left mandible, but not with the right.

• 대한소아치과학회지
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• 제39권1호
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• pp.84-89
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• 2012

치근낭은 가장 흔한 치성기원 낭으로 치수감염, 치수실활, 외상으로 인한 이차감염 또는 치아 우식에 의해 발생한다. 보통치근낭은 무증상이나 이차 감염이 발생할 경우 통증, 부종, 발적 등을 유발할 수 있으며, 크기가 커질수록 치근낭은 인접한 신경을 압박하여 안면비대칭 또는 마비증세를 일으킬 수 있다. 치료는 보존적 신경치료 또는 외과적 처치를 요하며, 낭의 크기가 크거나 인접 조직의 침범을 야기할 가능성이 있는 경우에는 낭적출술을 시행해야 한다. 대부분의 증례에서 완벽한 치료가 가능하고 재발율이 낮다. 본 증례의 환아들은 하악전치부 낭을 주소로 내원하여 임상검사에서 일부 하악전치가 괴사되었음을 발견하였으므로 근관치료를 시행한 후 전신마취하에 치근단절제술 및 치근낭 적출술을 시행하였다. 이후 컴퓨터단층촬영을 시행하여 이환부의 골생성 및 재발여부를 관찰하였으며 성공적인 결과를 보였기에 이를 보고하는 바이다.

• The Korean Journal of Pain
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• 제5권2호
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• pp.263-268
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• 1992

Ramsay Hunt 증후군으로 확진된 환자 2예를 경험하였다. 첫 예인 경우 안면신경마비가 발생하던 날 바로 방문하여 대상포진에 대한 치료와 환측 성상신경절 차단 15회, TENS, 안면운동 훈련 반복 등으로 발병 후 3주만에 완전 치유 되었으며, 두번째 환자는 발병 후 7주일 후에 방문하여 대상포진에 대한 치료는 생략하고 안면신경마비에 대한 치료라고 사료되는 환측 성상신경절 차단 50회, TENS 수백회, 안면운동 훈련 반복시행하였으나 부분적인 회복을 하였을 뿐이다. 그러므로 Ramsay Hunt 증후군의 치료도 다른 여러 질환과 마찬가지로 조기에 치료하면 회복이 빠르고 거의 완전하며, 늦어질수록 예후가 좋지 않다는 것을 경험하였다. 두 예 모두에서 대상포진 후 신경통으로의 이행은 없었다.