Consulta: creatorFacets:"Morales-Avalos,Rodolfo"
Registros recuperados: 10
Data/hora: 02/06/2024 04:35:34

Anatomical Variants of Anterior Cerebral Arterial Circle: A Study by Multidetector Computerized 3D Tomographic Angiography
Provedor de dados: 77
Autores: 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

Anthropometric Landmarks for Posterior Cruciate Ligament Reconstruction in Anatomical Position
Provedor de dados: 77
Autores: 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

Pelvimetry by Reformatted Computed Tomography in 290 Female Pelvis: Morphometric Variations Regarding Age
Provedor de dados: 77
Autores: Vázquez-Barragán,Miguel Ángel; Garza-Báez,Azalea; Morales-Avalos,Rodolfo; Martínez-González,Brenda; Jacobo-Baca,Guillermo; Pinales-Razo,Ricardo; Quiroga-Garza,Alejandro; de la Fuente-Villarreal,David; Elizondo-Riojas,Guillermo; Elizondo-Omaña,Rodrigo E; Guzmán-López,Santos.
The Mexican government passed a new reform of article 11 of the General Law in 2014 regarding Women's Access to a Life Free of Violence, which states that a cesarean section may not be performed if a vaginal birth is viable. Cesarean sections are excessively indicated in Northen Mexico, using the diagnosis of cephalopelvic disproportion due to a narrow pelvis. Currently, there is no standardized morphometry of the female pelvis in a Mexican population to establish adequate diagnostic parameter. Our study measures the pelvic diameters of the birth canal using abdominopelvic computed tomography (CT). Two hundred and ninety CT from Mexican women between the ages of 18 and 50 were collected and 3D reformatted in order to morphologically measure the pelvic...
Tipo: Journal article
Palavras-chave: Pelvimetry; Cesarean; Cephalopelvic disproportion; Reformatted CT; Morphometry; Mexico.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100043

Morphological Analysis of Major Segments of Coronary Artery Occlusion: Importance in Myocardial Revascularization Surgery
Provedor de dados: 77
Autores: Martínez-González,Brenda; Theriot-Girón,María del Carmen; López-Serna,Norberto; Morales-Avalos,Rodolfo; Quiroga-Garza,Alejandro; Reyes-Hernández,Cynthia G; Villanueva-Olivo,Arnulfo; Leyva-Villegas,Jorge I; Soto-Domínguez,Adolfo; de la Fuente-Villarreal,David; Elizondo-Omaña,Rodrigo E; Guzmán-López,Santos.
Revascularization surgery should ensure morphological similarity between the coronary artery and the graft. This is an important factor for its duration and permeability. The aim of this study was to analyze the morphological characteristics and morphometrics of the coronary artery segments with greater occlusion. This was an observational, cross-sectional descriptive study that consisted of two phases. A macroscopic phase in which 11 cadaveric hearts were extracted and coronary dominance and length of the anterior interventricular artery (AIA), the right coronary artery (RCA) and the circumflex artery (CXA) were determined. In the microscopic phase a total of 77 segments of these arteries were obtained and the luminal diameter, wall thickness, and amount...
Tipo: Journal article
Palavras-chave: Coronary artery; Morphology; Morphometry; Myocardial revascularization surgery.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000400002

Prevalencia y Características Morfométricas del Foramen Mastoideo y Vena Emisaria Mastoidea en Población Mexicana
Provedor de dados: 77
Autores: 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

Safe Areas for the Placement of Standard Shoulder Arthroscopy Portals: An Anatomical Study
Provedor de dados: 77
Autores: 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

A new Morphological Classification of the Anterior Inferior Iliac Spine: Relevance in Subspine Hip Impingement
Provedor de dados: 77
Autores: Morales-Avalos,Rodolfo; Leyva-Villegas,Jorge I; Sánchez-Mejorada,Gabriela; Méndez-Aguirre,Omar; Galindo-Aguilar,Oscar Ulises; Quiroga-Garza,Alejandro; Villarreal-Silva,Eliud E; Vílchez-Cavazos,Félix; Galván,José R.B; Elizondo-Omaña,Rodrigo E; Guzmán-López,Santos.
Femoroacetabular impingement syndrome (FAI) is a clinical entity that has been recognized in recent years as a frequent cause of pain and the early development of hip arthrosis. Subspine hip impingement is characterized by the prominent or abnormal morphology of the anteroinferior iliac spine (AIIS), which contributes to the development of a clinical picture that is similar to FAI. The aims of this study were to propose a new morphological classification of the AIIS, to determine the prevalence of the different AIIS morphologies based on this classification and to correlate the presence of said morphologies with different gender and age groups. The sample consisted of 458 hemipelvises from individuals of known age and sex (264 men and 194 women). Each...
Tipo: Journal article
Palavras-chave: Prevalence; Anterior inferior iliac spine; Subspine impingement; Classification; Morphology; Hip.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000200034

Neurovascular Structures at Risk During Anterolateral and Medial Arthroscopic Approaches of the Hip
Provedor de dados: 77
Autores: 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

Histomorphometric and Immunohistochemical Study of Early Adaptative Response of the Vascular Wall in a Termino-Terminal Microsurgical Model of Femoral Vessels in Wistar Rat
Provedor de dados: 77
Autores: Velazquez-Gauna,Sergio E; Soto-Domínguez,Adolfo; Quiroga-Garza,Alejandro; Reyes-Hernández,Cynthia G; Chavez-Reyes,Arturo; Morales-Avalos,Rodolfo; Montes-de-Oca-Luna,Roberto; Guzmán-López,Santos; Elizondo-Omaña,Rodrigo E.
When a vein segment is grafted into arterial circulation, biomechanical forces stimulate modification of its structure. This morphological adaptive response is progressive during a medium or long term and occludes the vessel lumen, leading to a graft failure. The objective of this study was to characterize the early morphological response of the vascular wall in a terminal-terminal vascular vein graft model in Wistar rats. A segment of the femoral vein was placed in the femoral circulation. An end to end microsurgical graft anastomosis technique was implemented and standardized in twenty rats. The samples were processed with histological technique to analyze the overall structure with hematoxylin and eosin, the composition of the vessel wall with Masson...
Tipo: Journal article
Palavras-chave: Hyperplasia; Morphology; Microsurgical model; Vascular adaptive changes; Venous graft.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200016

Estructuras Neurovasculares en Riesgo Durante Abordajes Artroscópicos en Tobillo: Un Estudio Cadavérico
Provedor de dados: 77
Autores: Hernández-Rodríguez,Alejandra Nohemí; Morales-Avalos,Rodolfo; Galindo de-León,Salvador; Theriot-Giron,María del Carmen; Vilchez-Cavazos,Félix; Elizondo-Omaña,Rodrigo E; Guzmán-López,Santos.
La artroscopía de tobillo ha tenido un aumento en su utilización en las últimas tres décadas para la corrección quirúrgica de afecciones del tobillo. Se prefiere a la cirugía abierta por sus múltiples ventajas, destacando la disminución de las complicaciones, con una prevalencia de 7,3 % para la artroscopia y 15,9 % para la cirugía abierta. Estudios previos de artroscopia de tobillo reportan complicaciones generales entre el 0,9 a 17 %, de las cuales el 33 a 50 % envuelven los nervios cutáneos, principalmente el nervio fibular superficial o alguna de sus ramas. El objetivo del presente estudio fue determinar estructuras neurovasculares en riesgo próximas a los portales artroscópicos del tobillo descritos en la literatura. Se llevó a cabo un estudio...
Tipo: Journal article
Palavras-chave: Artroscopia; Tobillo; Estructuras en riesgo; Nervios cutáneos; Anatomía; Cadáver.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000400021