Person:
Aragonés Maza, Paloma

First Name

Paloma

Last Name

Aragonés Maza

URI

https://hdl.handle.net/20.500.14352/79263

Affiliation

Universidad Complutense de Madrid

Faculty / Institute

Medicina

Department

Anatomía y Embriología

Area

Anatomía y Embriología Humana

Identifiers

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Now showing 1 - 10 of 25

Project number: 353
Elaboración de un sistema de evaluación continua y simultánea para todos los subgrupos prácticos de anatomía, mediante la aplicación Kahoot
(2022) Maranillo Alcaide, Eva; Aragonés Maza, Paloma; Quiñones Garrido, Sara; Rodríguez Vázquez, José Francisco; Sañudo Tejero, José Ramón; Valderrama Canales, Francisco; Vázquez Osorio, Teresa; Viejo Tirado, Fermín
Elaboramos una de serie de cuestionarios y retos sobre casos clínicos, imágenes radiológicas, técnicas de disección, relaciones anatómicas, etc. a través de la aplicación Kahoot, que nos han permitido evaluar a todos los alumnos de forma rápida, continua, simultánea y equitativa en cada una de las actividades que se desarrollan durante las prácticas de anatomía humana. A su vez, nos ha permitido controlar la asistencia, en cada una de las actividades, de forma rápida y veraz y detectar aquellos puntos de las prácticas que resultan más dificiles para nuestros alumnos.
Project number: 132
Elaboración de un manual de casos clínicos de anatomía radiológica aplicada de la extremidad inferior
(2023) Aragonés Maza, Paloma; Maranillo Alcaide, Eva; Quiñones Garrido, Sara; Rodríguez Vázquez, José Francisco; Sañudo Tejero, José Ramón; Valderrama Canales, Francisco José; Vázquez Osorio, María Teresa; Viejo Tirado, Fermín
Estudio de la variabilidad anatómica en la división terminal de la arteria poplítea
(2020) Aragonés Maza, Paloma; Vázquez Osorio, María Teresa
La arteria poplítea es la continuación de la arteria femoral. Comienza a nivel del hiato de Hunter y finaliza a nivel del borde inferior del músculo poplíteo, bifurcándose en sus dos ramas terminales; las arterias tibial anterior y posterior. La arteria peronea nace a partir de la arteria tibial posterior, distal a la bifurcación poplítea.La arteria poplítea en su división terminal presenta gran variabilidad anatómica; entre el 2% y el 21% según las fuentes. Las variables anatómicas a este nivel han sido clasificadas en múltiples ocasiones, siendo actualmente empleada la clasificación descrita por Kim.3. OBJETIVOS 1. Describir, mediante un estudio en cadáver, los patrones de bifurcación de la arteria poplítea. Encontrar si existe o no influencia del género y lado.2. Describir los diámetros de las arterias poplítea y sus ramas terminales, así como la longitud de la arteria tibial posterior proximal. Analizar si existen diferencias por género y lado.3. Estudiar la posible asociación entre la aparición de determinadas variables anatómicas y lesiones iatrogénicas vasculares durante procedimientos quirúrgicos...
The carotid axis revisited
(Scientific reports, 2021) Cobiella, R; Quinones, S; Konschake, Marko; Aragonés Maza, Paloma; Leon Vintró, Xavier; Vázquez Osorio, María Teresa; Sañudo Tejero, José Ramón; Maranillo Alcaide, Eva
The aim was to determine the variations in the level of origin of carotid bifurcation and diameters of the common, internal, and external carotid arteries which is clinically important for several interventional procedures. Therefore, 165 human embalmed corpses were dissected. The data collected were analyzed using the Chi square-test and the Pearson correlation test. The results of previous studies have been reviewed. In relation to the level of the carotid bifurcation, taking as a reference point the hyoid bone, the values ranged from 4 cm below the hyoid body to 2.5 cm above the body of the hyoid, being the average height—0.33 cm, with a standard deviation of 1.19 cm. The right carotid bifurcation was established at a higher level (x = − 0.19 cm.) than the left one (x = − 0.48 cm.) (p = 0.046). On the contrary, no significant gender differences could be observed. The arterial calibres of the common and internal carotid arteries were higher in male than female. In the internal carotid artery (X = 0.76 cm.), the left was greater than the right (X = 0.72 cm.) (P = 0.047). However, no differences in the distribution of the calibre of the external carotid artery were found neither by side nor gender. Variations in the level of bifurcation and calibres of carotid arteries are relevant for interventional radiology procedures and head and neck surgeries. Knowledge of these anatomical references might help clinicians in the interpretation of the carotid system.
What is new in flexor tendon pulleys and the gaps between them in triphalangeal fingers of the hand?
(Journal of Anatomy, 2024) De las Heras, Julio; Simón de Blas, Clara; Salaberri, Guillermo José; Krompas, Ioannis; Olewnik, Lukasz; Quinones, Sara; García Elías, Marc; Sañudo Tejero, José Ramón; Aragonés Maza, Paloma
The flexor tendon pulleys in the fingers of the hand are fibrous structures of variable size, shape, and thickness that cover the synovial sheath of these tendons. Despite their clinical relevance, their arrangement and configuration in each of the triphalangeal fingers have been little studied and with small sample sizes. 192 triphalangeal fingers belonging to 48 fresh body donors' hands were dissected. Multivariate analysis was carried out. Twenty-five cases (52%) were left hands, and 26 of the 48 hands belonged to female donors (54.2%). The results were analyzed by fingers for each of the 5 annular pulleys, the 3 cruciform pulleys and the gaps between them. In addition, the most and least frequent configurations of the pulleys in each of the fingers were studied, observing that the classic pattern with all the pulleys appeared only in 3 fingers (1.56%), while the most frequent pattern was A1-A2-C1-A3-A4, which was seen in 35 fingers (18.22%). CONCLUSIONS: The flexor pulleys in the triphalangeal fingers of the hand have shown enormous variability in arrangement and shape, and also rarely appear all in the same finger. This peculiar anatomical arrangement can help the different professionals who perform their clinical work in this region.
Anatomic Variations of the Calcaneofibular Ligament
(Foot & Ankle International, 2024) Ruzik, Kacper; Gonera, Bartosz; Borowski, Andrzej; Karauda, Piotr; Aragonés Maza, Paloma; Olewnik, Lukasz
Background: The lateral ankle joint comprises the anterior talofibular ligament (ATFL), calcaneofibular ligament (CFL), and posterior talofibular ligament (PTFL). The purpose of this study was to propose a classification of CFL morphology. Methods: The material comprised 120 paired lower limbs from human cadavers (30 male, 30 female), mean age 62.3 years. The morphology was carefully assessed, and morphometric measurements were performed. Results: A 4-part method for anatomic classification can be suggested based on our study. Type 1 (48.3%), the most common type, was characterized by a bandlike morphology. Type 2 (9.2%) was characterized by a Y-shaped band, and type 3 (21.7%) by a V-shaped band. Type 4 (20.8%) was characterized by the presence of 2 or 3 bands. Type 2 and 4 were divided into further subtypes based on origin footprint. Conclusion: The aim of our study was to describe variations of calcaneofibular ligament. Our proposed 4-part classification may be of value in clinical practice in future recognition of CFL injuries and in its repair or reconstruction. Clinical relevance: The anatomy of the CFL plays an important role in stability of the ankle. Greater recognition of anatomical variation may help improve reconstructive options for patients with chronic lateral ankle instability.
The accessory heads of the quadriceps femoris muscle may affect the layering of the quadriceps tendon and potential graft harvest length
(Knee Surgery, Sports Traumatology, Arthroscopy, 2023) Olewnik, Lukasz; Zielinska, Nicole; Aragonés Maza, Paloma; Ruzik, Kacper; Paulsen, Friedrich; Borowski, Andrzej; La Prade, Robert F.
Purpose The aim of the study was to assess the quadriceps femoris system for the presence of additional layers. Methods One hundred and twenty-eight lower limbs fixed in 10% formalin were examined. Results Five types of quadriceps tendon layering were found based on the accessory heads of the quadriceps muscle. Type I (55%)—represented by four heads and four layers, and it was something new because standard orthopaedic textbooks described quadriceps tendon as a structure composed of only three layers. Type II (27.4%)—the first four layers were the same as in Type 1, but the accessory tendon of the fifth head of the quadriceps femoris muscle had the deepest attachments. Type III (10.9%)—this type included 6 heads of quadriceps femoris. It consisted of five layers. Type IV (3.1%)—this type included 7 quadriceps femoris heads. This type consisted of only four layers. Type V (3.1%)—this type included 8 heads of the quadriceps femoris heads. This type consist of 5 layers. Conclusion The findings of this study provide a detailed anatomy of the quadriceps tendon including the accessory tendons of the accessory heads of the quadriceps tendon. The accessory heads of the quadriceps femoris muscle contribute to the layering of the quadriceps tendon. The second conclusion of this study is the development of safe distances depending on the types. Not all types are perfect for harvesting—Type IV seems to be the safest type, in turn Type V the most dangerous.
A proposal for a new morphological classification of the popliteus muscle tendon with potential clinical and biomechanical significance
(Scientific Reports, 2021) Olewnik, Lukasz; La Prade, Robert F.; Paulsen, Friedrich; Gonera, Bartosz; Kurtys, Konrad; Podgórski, Michał; Aragonés Maza, Paloma; Sañudo Tejero, José Ramón; Polguj, Michał
The purpose of this study was to characterize the morphological variations in the proximal attachments and create an accurate classification of the PPM for use in planning surgical procedures in this area, for evaluating radiological imaging and rehabilitation. One hundred and thirty-four lower limbs of body donors (52 woman and 82 man) fixed in 10% formalin solution were examined. The popliteus muscle was present in all 134 limbs. Four main types were identified with subtypes. The most common type was Type I (34.3%), characterized by a single tendon in the popliteus sulcus. Type II (30.6%) characterized by a main tendon in the popliteus sulcus and accessory bands. This type was divided into five subtypes (A–E) based on presence of specific accessory bands. Type III (15.3%) was characterized by two tendons in the popliteal sulcus. Type IV (19.4%) was characterized by two tendons in the popliteus sulcus and additional bands. This type was also divided into five subtypes (A–E) based on presence of specific accessory bands. The popliteofibular ligament was present in 90.3% of cases. A new classification based on a proximal attachment is proposed. The popliteus tendon is characterized by a very high morphological variability, which can affect posterolateral knee stability and the natural rotation of the tibia. Such a classification system may be useful for clinicians performing medical procedures within the knee joint, including orthopedic surgeons.
The medial arm fasciocutaneous flap: a wasted alternative?
(European Journal of Anatomy, 2021) Vidal, A.M.; Sañudo Tejero, José Ramón; Quinones, S.; Konschake, Marko; García Pumarino, R.; Aragonés Maza, Paloma
The medial side of the upper arm is supplied by perforator arteries arising from the brachial artery, the superior ulnar collateral artery and the artery to the biceps muscle. Fasciocutaneous flaps from the medial arm region could be designed based on these perforating arteries, but the anatomical variability of this region has led to a loss of interest in it as a donor area for fasciocutaneous flaps. The aim of this study is to identify, through cadaveric dissection, whether there are constant perforator arteries from the brachial artery that could be used to raise fasciocutaneous flaps from the inner side of the arm. For this purpose, 15 upper extremities belonging to body-donors have been dissected. Six extremities were right-side arms and six belonged to female donors. 7 parameters and the differences between gender and side of the upper extremity were studied (distances from the acromion and the coracoid to the beginning and to the end of each perforating artery, distance from the insertion of the distal tendon of the biceps muscle to the origin of each perforator artery, length and diameter of the perforators arteries). Perforator arteries arising from the brachial artery to the inner face of the arm were found in all the upper limbs dissected. The median number of these perforator arteries found by the upper limb was 5±1.9 (range 3-9). Anatomical variations consisted of the number of perforator arteries that were found in each limb. Only in 2 arms (13.3%), the perforator arteries arose from a superficial brachial artery or from the distal part of the brachial artery. The mean diameter of the perforating artery was 1.80±0.58 mm, and the mean length resulted in 4.67±2.07 cm. The consistent vascular anatomy found for these perforator arteries, arising from the brachial artery, and the easy landmarks described justify the use of fasciocutaneous flaps of the medial side of the arm for reconstructive surgery.
Classification of the popliteofibular ligament
(Clinical Anatomy, 2022) Olewnik, Lukasz; Gonera, Bartosz; Kurtis, Konrad; Zielinska, Nicol; Ruzik, Kacper; Aragonés Maza, Paloma; Sañudo Tejero, José Ramón; Danowska-Klonowska, Dominika; La Prade, Robert F.
The purpose of this study was to characterize the morphological variations in the distal attachment of the popliteofibular ligament (PFL) and create an accurate classification for use in planning surgical procedures in this area and in evaluating radiological imaging. One hundred and thirty-seven lower limbs of body donors fixed in 10% formalin solution were examined for the presence and course of the PFL. The PFL was present in 88.3% of cases. We propose the following three-fold classification: type I (72.3%), the most common type, characterized by the attachment onto the apex of the head of the fibula, type II (8.7%), characterized by a bifurcation, with the dominant band inserting on the anterior slope of the styloid process of the fibula and the smaller band onto the posterior surface of the styloid process of the fibula and type III (7.3%), characterized by a double PFL: the first PFL (main) originated from the popliteus tendon and inserted onto the anterior slope of the styloid process of the fibula, while the second originated from the musculotendinous junction of the popliteus muscle and inserted on the posterior surface of the styloid process of the fibula. The PFL was characterized by high morphological variation, as reflected in our proposed classification. This variation may present clinical and biomechanical issues for both medical personnel and researchers. Our proposed classification may be valuable for clinicians who evaluate and perform surgical procedures within the knee joint area.