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Registros recuperados: 5
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Anatomical Variants of Anterior Cerebral Arterial Circle: A Study by Multidetector Computerized 3D Tomographic Angiography International Journal of Morphology
Jiménez-Sosa,Michelle Stephanie; Cantu-Gonzalez,Juan Ramón; Morales-Avalos,Rodolfo; de la Garza-Castro,Oscar; Quiroga-Garza,Alejandro; Pinales-Razo,Ricardo; Elizondo-Riojas,Guillermo; Elizondo-Omaña,Rodrigo E; Guzmán- López,Santos.
One of the most common causes of stroke is rupture of aneurysms whose approach requires knowledge of anatomical variants. The aim of this study was to determine the prevalence of anatomical variants of the anterior cerebral artery (ACA) and the anterior communicating artery (AComA) by 3D computed tomography angiography (3D CTA) in Mexican individuals. A retrospective, observational, cross-sectional descriptive study of 283 patients, independent of sex or age, in which morphometric measurements of cerebral vessels were evaluated using contrasted 3D CTA from a period of two years was performed. We found at least one "atypical" variant in a third of the study population (33.93 %). The most common "atypical" variant was the absence of the AComA (14.1 %). A...
Tipo: Journal article Palavras-chave: Anterior cerebral artery; Anatomical variant; Anterior communicating artery; Cerebral arterial circle; Subarachnoid hemorrhage; Cerebral endovascular surgery.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000300049
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Anthropometric Landmarks for Posterior Cruciate Ligament Reconstruction in Anatomical Position International Journal of Morphology
Compeán-Martínez,Gustavo Adolfo; Morales-Avalos,Rodolfo; Vílchez-Cavazos,Félix; Acosta-Olivo,Carlos; Mendoza-Lemus,Oscar Fernando; de la Garza-Castro,Oscar; Elizondo-Omaña,Rodrigo E; Guzmán-López,Santos.
To determine viable anatomical landmarks allowing for accurate femoral and tibial tunnel placement in anatomical position during posterior cruciate ligament (PCL) reconstruction. Ten knees were dissected to analyze femoral and tibial PCL insertion measurements and the features specific to the PCL and its fascicles. The clock hands system was used to measure femoral insertions. The meniscus and anterior cruciate ligament (ACL) were used as landmarks to measure tibial insertions. The PCL and its corresponding fascicle characteristics were determined by its femoral insertion, central portion and tibial insertion. The mean lengths between the central point of the PCL footprint and the articular cartilage border at 12:00 h were 17.23 mm (±3.94) and 17.73 mm...
Tipo: Journal article Palavras-chave: Posterior cruciate ligament; Femoral tunnels; Reconstruction; Anatomy; Landmark.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000200042
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Neurovascular Structures at Risk During Anterolateral and Medial Arthroscopic Approaches of the Hip International Journal of Morphology
Méndez-Aguirre,Omar; Morales-Avalos,Rodolfo; Compeán-Martínez,Gustavo A; Espinosa-Uribe,Abraham G; Vílchez-Cavazos,Félix; Theriot-Giron,María del Carmen; Quiroga-Garza,Alejandro; de la Garza-Castro,Oscar; Guzmán Avilán,Katia; Guzmán-López,Santos; Elizondo-Omaña,Rodrigo E.
To describe the safety areas for placement of 5 anterolateral portals (anterior, anterior lateral, posterior lateral, proximal anterior medial and distal anterior medial portals) and 3 recently described medial portals (anterior medial, posterior medial and distal posterior medial portals) to provide topographical description of the safety of each. A descriptive, observational and cross-sectional study in which femoral triangle dissection was performed in 12 hips. 5 lateral portals and the 3 medial portals were placed. Clinically relevant neurovascular structures associated with each portal, were identified measured and documented. The lateral portal with the highest risk of injury to a nearby neurovascular structure was the anterior portal, the most...
Tipo: Journal article Palavras-chave: Anatomy; Arthroscopy; Hip; Portal.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200051
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Prevalencia y Características Morfométricas del Foramen Mastoideo y Vena Emisaria Mastoidea en Población Mexicana International Journal of Morphology
Hernández-Rodríguez,Alejandra Nohemí; Galindo-de León,Salvador; Morales-Avalos,Rodolfo; Theriot-Girón,María del Carmen; de la Garza-Castro,Oscar; Elizondo-Omaña,Rodrigo E; Guzmán-López,Santos.
Las descripciones anatómicas del foramen mastoideo (FM) y la vena emisaria mastoidea (VEM) son escasas en la literatura. Dicho conocimiento es fundamental para realizar un abordaje quirúrgico de la fosa craneal posterior o región mastoidea. El objetivo del estudio fue determinar la prevalencia, variantes y características morfométricas del FM y VEM en población mexicana. Se evaluaron 176 hemicráneos por dos observadores independientes cegados el uno del otro, se determinaron la prevalencia, número y características morfométricas. La prevalencia del FM entre los dos lados fue de 75% con una mayor frecuencia de forámenes del lado izquierdo comparado con el lado derecho; respecto al número de forámenes se encontraron 108 hemicráneos con un foramen único, 22...
Tipo: Journal article Palavras-chave: Foramen mastoideo; Vena emisaria mastoidea; Prevalencia; Características morfométricas; México.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200001
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Safe Areas for the Placement of Standard Shoulder Arthroscopy Portals: An Anatomical Study International Journal of Morphology
Espinosa-Uribe,Abraham G; Morales-Avalos,Rodolfo; Gutiérrez-de la O,Jorge; García-de León,Oscar R; Torres-García,Jessica K; Guzmán-Avilán,Katia; Vílchez-Cavazos,Félix; de la Garza-Castro,Oscar; Guzmán-López,Santos; Elizondo-Omaña,Rodrigo E.
The abundant vascular structures that surround the shoulder joint are complex and variable, complicating arthroscopy approaches. The aim of this study is to determine safe and risky areas around standard posterior and standard anterior portals, and accounting for the distribution of neurovascular structures of small and medium diameters that can lead to intra-articular bleeding during surgery. The standard posterior portal, and standard anterior portal were placed as described in the literature, and punch dissection was performed 2.5 cm around the trocar in situ. The arrangement of each identified structure was photographically documented and digitalized for each anatomic plane; the distance to the trocar and the diameter of each structure were measured....
Tipo: Journal article Palavras-chave: Anatomy; Arthroscopy; Portals; Safe Areas; Shoulder.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000400033
Registros recuperados: 5
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