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1.
Gait Posture ; 68: 430-436, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30594871

RESUMO

BACKGROUND: Kinematic variability of the foot and ankle segments exists during ambulation among individuals with pes planovalgus (PPV) secondary to cerebral palsy (CP). Clinicians have previously recognized such variability through classification schemes to identify subgroups of individuals, but have been unable to identify kinematic foot types. RESEARCH QUESTION: The purpose of this work was to identify kinematic foot types among children with PPV secondary to CP using 3-dimensional multi-segment foot and ankle kinematics during gait as inputs for principal component analysis (PCA) and K-means cluster analysis. METHODS: In a single assessment session, multi-segment foot and ankle kinematics using the Milwaukee Foot Model (MFM) were collected in 31 children/adolescents with pes planovalgus (49 feet) and 16 typically developing (TD) children/adolescents (31 feet). PCA was used as a data reduction technique on 34 kinematic variables. K-means cluster analysis was performed on the identified principal components (PCs) and one-way analyses of variance (ANOVA) was done to determine the effect of subgroup membership on PC scores. RESULTS: The PCA reduced the kinematic variables to seven PCs which accounted for 91% of the total variance. Six distinct kinematic foot types were identified by the cluster analysis. The foot types showed unique kinematic characteristics in both the hindfoot and forefoot. SIGNIFICANCE: This study provides further evidence of kinematic variability in the foot and ankle during ambulation associated with pes planovalgus secondary to CP. The specific contributions of the hindfoot and forefoot would not have been detected using a single segment foot model. The identification of kinematic foot types with unique foot and ankle characteristics has the potential to improve treatment since patients within a foot type are likely to benefit from similar intervention(s).


Assuntos
Paralisia Cerebral/complicações , Pé Chato/fisiopatologia , Pé/fisiopatologia , Adolescente , Articulação do Tornozelo/fisiopatologia , Fenômenos Biomecânicos , Criança , Pré-Escolar , Análise por Conglomerados , Feminino , Pé Chato/etiologia , Marcha/fisiologia , Humanos , Imageamento Tridimensional/métodos , Masculino , Análise de Componente Principal , Estudos Retrospectivos
2.
Vasc Endovascular Surg ; 50(6): 435-7, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27581225

RESUMO

Infection of an aortic endograft is a rare complication following endovascular aneurysm repair. These patients have been treated with explantation of the graft to obtain source control followed by an extra-anatomic bypass to restore circulation. The present case study describes an interesting case of Pasteurella infection involving an aortic endograft managed nonoperatively by percutaneous drainage and graft preservation.


Assuntos
Aneurisma da Aorta Abdominal/cirurgia , Implante de Prótese Vascular/efeitos adversos , Implante de Prótese Vascular/instrumentação , Prótese Vascular/efeitos adversos , Procedimentos Endovasculares/efeitos adversos , Procedimentos Endovasculares/instrumentação , Infecções por Pasteurella/microbiologia , Pasteurella multocida/isolamento & purificação , Infecções Relacionadas à Prótese/microbiologia , Animais , Antibacterianos/uso terapêutico , Aneurisma da Aorta Abdominal/diagnóstico por imagem , Aneurisma da Aorta Abdominal/microbiologia , Aortografia/métodos , Angiografia por Tomografia Computadorizada , Drenagem/métodos , Humanos , Masculino , Infecções por Pasteurella/diagnóstico por imagem , Infecções por Pasteurella/terapia , Infecções por Pasteurella/transmissão , Animais de Estimação/microbiologia , Infecções Relacionadas à Prótese/diagnóstico por imagem , Infecções Relacionadas à Prótese/terapia , Infecções Relacionadas à Prótese/transmissão , Fatores de Tempo , Resultado do Tratamento , Zoonoses
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