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1.
Journal of the Korean Association of Oral and Maxillofacial Surgeons ; : 48-51, 2015.
Article Dans Anglais | WPRIM | ID: wpr-214920

Résumé

Cemento-ossifying fibromas are benign tumors, and, although cases of an aggressive type have been reported, no cases of cemento-ossifying fibroma transforming into osteosarcoma have been documented previously. Low-grade osteosarcoma is a rare type of primary bone tumor, representing 1%-2% of all osteosarcomas. A 45-year-old female patient was diagnosed with cemento-ossifying fibroma, treated with mass excision several times over a period of two years and eight months, and followed up. After biopsy gathered because of signs of recurrence, she was diagnosed with low-grade osteosarcoma. The patient underwent wide excision, segmental mandibulectomy, and reconstruction with fibula free flap. The aim of this report is to raise awareness of the possibility that cemento-ossifying fibroma can transform into osteosarcoma and of the consequent necessity for careful diagnosis and treatment planning.


Sujets)
Femelle , Humains , Adulte d'âge moyen , Biopsie , Diagnostic , Fibrome , Fibula , Lambeaux tissulaires libres , Ostéotomie mandibulaire , Ostéosarcome , Récidive
2.
Maxillofacial Plastic and Reconstructive Surgery ; : 161-167, 2014.
Article Dans Anglais | WPRIM | ID: wpr-37118

Résumé

PURPOSE: The reconstruction of mandibular defects poses many difficulties due to the unique, complex shape of the mandible and the temporomandibular joints. With development of microvascular anastomosis, free tissue transplantation techniques, such as deep circumflex iliac artery (DCIA) flap and fibular free flap (FFF), were developed. The DCIA offers good quality and quantity of bone tissue for mandibular segmental defect and implant for dental rehabilitation. Virtual surgical planning (VSP) and stereolithography-guided osteotomy are currently successfully applied in three-dimensional mandibular reconstruction, but most use FFF. There are only a few articles on reconstruction with the DCIA that assess the postoperative results. METHODS: Three patients admitted during a five month period (April of 2013 to August of 2013) underwent resection of mandible and DCIA musculo-osseous reconstruction using a VSP and stereolithographic modeling and assessment of outcomes included technical accuracy, esthetic contour, and functional outcomes. RESULTS: This technique yielded iliac bone segment with excellent apposition and duplication of the preoperative plan. Flap survival was 100 percent and all patients maintained preoperative occlusion and contour. CONCLUSION: Based on our experience, we offer considerations and logically consistent protocols by classification of mandibular defects, and demonstrate the benefits in VSP and stereolithographic modeling of mandibular reconstructive surgery with DCIA flap.


Sujets)
Humains , Os et tissu osseux , Classification , Lambeaux tissulaires libres , Artère iliaque , Logique , Mandibule , Reconstruction mandibulaire , Ostéotomie , Réadaptation , Articulation temporomandibulaire , Transplantation de tissu , Transplants
3.
Journal of the Korean Association of Oral and Maxillofacial Surgeons ; : 83-86, 2014.
Article Dans Anglais | WPRIM | ID: wpr-108998

Résumé

There are some difficulties in approaching and removing the lesion in infratemporal fossa because of its anatomical location. After wide excision of tumor lesion, it is also difficult for reconstruction of mandibular condyle and cranium base on infratemporal fossa. Besides, there are some possibilities of cerebrospinal fluid leakage, intracranial infection and bone resorption. It is also challenging for functional reconstruction that allows normal mandibular movement, preventing mandibular condyle from invaginating into the skull. In this report, we present 14-month follow-up results of a patient who had undergone posterior segmental mandibulectomy including condyle and infratemporal calvarial bone and mandible reconstruction with free vascularized costochondral rib and calvarial bone graft to restoration of the temporomandibular joint area.


Sujets)
Humains , Résorption osseuse , Transplantation osseuse , Liquide cérébrospinal , Études de suivi , Lambeaux tissulaires libres , Mandibule , Condyle mandibulaire , Ostéotomie mandibulaire , , Côtes , Crâne , Articulation temporomandibulaire , Transplants
4.
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons ; : 205-208, 2012.
Article Dans Coréen | WPRIM | ID: wpr-785145
5.
Journal of the Korean Association of Oral and Maxillofacial Surgeons ; : 177-183, 2012.
Article Dans Anglais | WPRIM | ID: wpr-150774

Résumé

Herpes zoster is a viral infection caused by the reactivation of the varicella zoster virus, an infection most commonly affecting the thoracolumbar trunk. Herpes Zoster Infection (HZI) may affect the cranial nerves, most frequently the trigeminal. HZI of the trigeminal nerve distribution network manifests as multiple, painful vesicular eruptions of the skin and mucosa which are innervated by the infected nerves. Oral vesicles usually appear after the skin manifestations. The vesicles rupture and coalesce, leaving mucosal erosions without subsequent scarring in most cases. The worst complication of HZI is post-herpetic neuralgia; other complications include facial scarring, motor nerve palsy and optic neuropathy. Osteonecrosis with spontaneous exfoliation of the teeth is an uncommon complication associated with HZI of the trigeminal nerve. We report several cases of osteomyelitis appearing on the mandible, caused by HZI, and triggering osteonecrosis or spontaneous tooth exfoliation.


Sujets)
Cicatrice , Nerfs crâniens , Zona , Herpèsvirus humain de type 3 , Mandibule , Muqueuse , Nécrose , Atteintes du nerf optique , Ostéomyélite , Ostéonécrose , Paralysie , Rupture , Peau , Manifestations cutanées , Dent , Chute dentaire , Nerf trijumeau
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