ALEXANDRE SADAO IUTAKA

Índice h a partir de 2011
4
Projetos de Pesquisa
Unidades Organizacionais
Instituto de Ortopedia e Traumatologia, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/41 - Laboratório de Investigação Médica do Sistema Músculoesquelético, Hospital das Clínicas, Faculdade de Medicina

Filtros

Limpar filtros

Configurações

Revista / Livro: Acta Ortopedica Brasileira ×

Resultados de Busca

Agora exibindo 1 - 3 de 3
  • article 8 Citação(ões) na Scopus
    TREATMENT OF ODONTOID FRACTURES
    (2011) PONTIN, Pedro Augusto; BUMLAI, Renam Urt Mansur; LETAIF, Olavo Biraghi; DAMASCENO, Marcelo Loquette; CRISTANTE, Alexandre Fogaca; MARCON, Raphael Martus; IUTAKA, Alexandre Sadao; OLIVEIRA, Reginaldo Perilo; BARROS FILHO, Tarcisio Eloy Pessoa de
    Objective: This article describes a clinical and radiologic retrospective analysis of odontoid fractures in 20 patients accompanied by the IOT-HCFMUSP, from 2004 to 2010. Methods: These fractures were stratified according to their classification (AO/Anderson and D'Alonzo), epidemiologic profile, type of treatment, time to consolidation of the fracture, and complications. Results: It was observed that there was a higher number of odontoid fractures in males (4: 1), between the third and fourth decades of life (60%), and that the main causes of the trauma were falling from heights (60%) and car accidents (25%). Also, 15% of the cases presented neurological deficits. The most prevalent type of odontoid fracture was Type II (55%) followed by Type III (40%). The most prevalent type of treatment used for Type II and III fractures was surgical (73%) and non-surgical (87.5%), respectively. Consolidation of the fracture took place within 16 weeks in 87.5% of surgically treated cases, and in 54.5% of those treated non-surgically. No cases of pseudoarthrosis were found. Conclusion: The surgical treatment of Type II odontoid fractures showed satisfactory results in relation to time to consolidation of the fracture and low incidence of complications, as did the non-surgical treatment used for the Type III fractures. Level of Evidence: Level IV, case series.
  • article 5 Citação(ões) na Scopus
    TOMOGRAPHIC ANALYSIS OF ANATOMICAL PARAMETERS OF THE AXIS IN CHILDREN
    (2012) TORELLI, Alessandro Gonzalez; KOHLMANN, Rafael Bellucci; BIRAGHI, Olavo Letaif; LUTAKA, Alexandre Sadao; CRISTANTE, Alexandre Fogaca; MARCON, Raphael Martus
    Objective: To carry out an anatomical study of the axis with the use of computed tomography (CT) in children aged from two to ten years, measuring the lamina angle, lamina and pedicle length and thickness, and lateral mass length. Methods: Sixty-four CTs were studied from patients aged 24 to 120 months old, of both sexes and without any cervical anomaly. The measurements obtained were correlated with the data on age and sex of the patients. Statistical analysis was performed using the Students ""t"" tests. Results: We found that within the age range 24-48 months, 5.5% of the lamina and 8.3% of the pedicles had thicknesses of less than 3.5mm, which is the minimum thickness needed for insertion of the screw. Between 49 and 120 months, there were no lamina thicknesses of less than 3.5mm, and 1.2% of the pedicle thicknesses were less than 3.5mm values. Neither of the age groups had any lamina and pedicle lengths of less than 12mm, or lateral mass lengths greater than 12mm. Conclusion: The analysis of the data obtained demonstrates that most of the time, is possible to use a 3.5mm pedicle screw in the laminas and pedicles of the axis in children. Level of Evidence: II, Development of diagnostic criteria in consecutive patients.
  • article 21 Citação(ões) na Scopus
    Traumatic spondylolisthesis of the axis: epidemiology, management and outcome
    (2012) FERRO, Fernando Portilho; BORGO, Gustavo Dias; LETAIF, Olavo Biraghi; CRISTANTE, Alexandre Fogaca; MARCON, Raphael Martus; LUTAKA, Alexandre Sadao
    Objective: To evaluate cases of traumatic spondylolisthesis of the axis and describe them in relation to epidemiology, classification, neurological deficit, healing time and treatment method. Method: A retrospective analysis of the medical records of patients treated between 2002 and 2010 at IOT-FMUSP. Inclusion criteria: pars interarticularis fracture of C2. Results: 68% were male patients, with a mean age of 39.1 years. We used the classification by Effendi, modified by Levine-Edwards. Type I fractures were observed in five patients (31.2%) and type II in eight patients (50%). Only three patients (18%) had type IIa fracture. There were no cases of type III. Mechanism: Eight car accidents and four falls. Other mechanisms: being run over, and diving accidents. Treatment with halo traction was used in eleven patients, using minerva cast and halo-cast. Healing time: 3.6 months. Follow-up time: 9.6 months. Discussion: In general, hangman fracture has a good prognosis, which is confirmed by our results. There was no need for surgery in any of the cases. The incidence of neurological deficit is low. No patient had unstable fracture (type III). Conclusion: This paper suggests that traumatic spondylolisthesis of the axis continues to be an injury that is successfully treated by conservative treatment in most cases. Level of Evidence IV, Case series.