NIVALDO ALONSO
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Cirurgia, Faculdade de Medicina - Docente
Instituto Central, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/04 - Laboratório de Microcirurgia, Hospital das Clínicas, Faculdade de Medicina - Líder
Instituto Central, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/04 - Laboratório de Microcirurgia, Hospital das Clínicas, Faculdade de Medicina - Líder
2 resultados
Resultados de Busca
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- Distracção osteogênica mandibular: experiência do INTO-RJ(2014) MARICEVICH, PABLO; CRUZ, RICARDO LOPES DA; ALONSO, NIVALDO; FREITAS, RENATO DA SILVA; BASÍLIO, GABRIEL DUARTE; BRAUNE, ANDRÉ; LESSA, EDMAR SOARES; COSTA, MAYRA JOAN MARINS DA; SILVA, LEIZI REGINA BARRETOABSTRACT Introduction: The introduction of distraction of the craniofacial skeleton represented a great advancement in the practice of craniofacial surgery. Distraction is a less invasive technique that is faster and with an apparently lower morbidity than the traditional craniofacial reconstruction techniques. In 2013, the craniomaxillofacial surgery service of the Institute of Traumatology and Orthopaedics performed a series of mandibular distraction surgeries. In this article, we aim to present our experience. Methods: From January to March 2013, seven patients underwent mandibular distraction surgery. All patients exhibited unilateral or bilateral mandibular hypoplasia due to ankylosis of the temporomandibular joint (TMJ), or craniofacial microsomia. In some patients with ankylosis of the TMJ, resection of the anlylotic block was also performed concomitantly with the distraction. Results: Postoperative improvement was noted in all the stomatognathic functions: weight gain, decannulation of a tracheostomized patient, and improved quality of sleep. There was an improvement in facial profiles: the laterognathism was eased and the mouth opening increased in most patients. The mouth opening increased more significantly in patients in whom ankylosis surgery was done in conjunction with the distraction. The most common complication was pain upon distraction, reported by five patients (71%). Conclusion: Mandibular distraction osteogenesis is a good alternative for the treatment of mandibular hypoplasia, often being the first indication in some clinical situations. It apparently has a lower morbidity than the classic mandible reconstructions and has the added benefit of also lengthening the soft tissues.
- Abordagem cirúrgica no tratamento da displasia fibrosa craniofacialexperiência de 14 anos(2014) ALONSO, NIVALDO; MATUSHITA, HAMILTON; ALESSI, MARIANA SISTOABSTRACT Introduction: Fibrous dysplasia is benign tumor of the craniofacial skeleton that primarily affects young patients. It is characterized by the progressive growth of benign fibrous tumors with resulting functional and aesthetic deformities. This study assesses the clinical and prognostic features in patients with fibrous dysplasia who underwent surgical treatment at our institution. Methods: Retrospective analysis of 19 patients with craniofacial fibrous dysplasia, treated between January 1997 and December 2011 with bone remodeling and surgical resection. We also review the literature regarding fibrous dysplasia. Results: Patients ranged between 8-65 years old, with a mean age of 21.75 years. Ten patients (52.7%) were women. The polyostotic form was predominant and present in15 cases (78.9%). The sphenoid, ethmoid, and frontal bones were most commonly involved in the polyostotic form and the mandibular and zygomatic bones were most commonly involved in the monostotic form. The main complaint was asymmetry of the face. One patient developed decreased visual acuity. Treatment was based on surgical resection and graft reconstruction in the localized form of the disease, and bone abrasion and remodeling in the polyostotic form. Intracranial access was necessary in only one case (5.2%) where the optic nerve was compressed. Repeat surgical treatment due to recurrent tumor growth was necessary in three patients. The only complication occurred in a patient who developed lagophthalmos and epicanthus postoperatively after undergoing surgery using infraorbital access. No other complications occurred during shortand long-term follow-up. Functional preservation and facial contour recovery outcomes were satisfactory. Conclusion: Our experience, along with that of other investigators, demonstrates that surgery is effective in treating selected cases of craniofacial fibrous dysplasia.