0000000001262986
AUTHOR
Carlos Martínez Pérez
Estudio baropodométrico en pacientes tratados mediante artroplastia total de rodilla
La patología artrósica de la rodilla condiciona una disminución de la carga del miembro afecto y un patrón de apoyo con predominio generalmente del arco externo. El propósito de este estudio es determinar si existe una modificación significativa de este patrón tras la implantación de una artroplastia total de rodilla (ATR) primaria, recogiendo las presiones plantares de ambos pies mediante baropodometría electrónica previamente y 4 meses tras la cirugía, tanto en estática como en dinámica. Así, se analizan las presiones plantares de 30 pacientes, 21 mujeres y 9 hombres, intervenidos de ATR primaria en el Hospital Universitario Doctor Peset entre los años 2013 y 2015. También se ha determina…
Conodontos del Emsiense (Devónico inferior) del Pirineo central español
De entre los 7 Pisos en los que está subdividido el Sistema Devónico, el Emsiense, es quizás uno de los que más interés ha despertado en los últimos años, siendo la redefinición de su límite inferior y su posible subdivisión en 2 subpisos, algunos de los objetivos principales que se ha planteado la Subcomision de Estratigrafia del Devónico. Teniendo en cuenta estos problemas y las posibilidades que muestran los Pirineos Centrales Españoles para contribuir a su solución, se propuso la realización del presente trabajo. Se han descrito y muestreado 11 secciones, así como diversos muestreos aislados, pertenecientes a las Subfacies Sierra Negra, Baliera y Compte del Área de Facies Sur, con edade…
Prevalencia en nuestro medio de las deformidades dinámicas posicionales del hallux como secuela de las fracturas de tercio medio y distal de tibia
Dynamic positional deformity of the hallux is a relatively new disease, precisely because of its innovative nature and dynamics may go unnoticed to clinicians. It is because of this, that the limited literature available stresses the importance of making an active search for this pathology in our daily practice. The purpose of this study is to estimate the prevalence of these deformities at the University Hospital Dr. Peset of Valencia as well as make an analysis of their management. An analytical, descriptive and retrospective study was designed in which patients admitted in our center during 2014 and 2015 with medium and distal third tibia fracture were analyzed searching for dynamics pos…
Bioluminescent-like squamation in the galeomorph shark Apristurus ampliceps (Chondrichthyes: Elasmobranchii)
Galeomorph sharks constitute the most taxonomically and ecologically diverse superorder of living selachians. Despite comprising several typically deep-water taxa, no bioluminescent species have been reported in this group so far. Interestingly, the study of shark squamation has been revealed in recent years to be a good proxy for inferring some ecological aspects of poorly known species. In particular, the high morphological specificity of the dermal denticles and the squamation patterns of all currently-known bioluminescent sharks could constitute a potential tool for predicting bioluminescence in both fossil and living taxa. Following this idea, we provide the first evidence supporting t…
Categorical versus geometric morphometric approaches to characterising the evolution of morphological disparity in Osteostraci (Vertebrata, stem-Gnathostomata)
Morphological variation (disparity) is almost invariably characterised by two non-mutually exclusive approaches: (i) quantitatively, through geometric morphometrics, and (ii) in terms of discrete, 'cladistic', or categorical characters. Uncertainty over the comparability of these approaches diminishes the potential to obtain nomothetic insights into the evolution of morphological disparity and the few benchmarking studies conducted so far show contrasting results. Here, we apply both approaches to characterising morphology in the stem-gnathostome clade Osteostraci in order to assess congruence between these alternative methods as well as to explore the evolutionary patterns of the group in …
Data from: Assessing metabolic constraints on the maximum body size of actinopterygians: locomotion energetics of Leedsichthys problematicus (Actinopterygii, Pachycormiformes)
Maximum sizes attained by living actinopterygians are much smaller than those reached by chondrichthyans. Several factors, including the high metabolic requirements of bony fishes, have been proposed as possible body-size constraints but no empirical approaches exist. Remarkably, fossil evidence has rarely been considered despite some extinct actinopterygians reaching sizes comparable to those of the largest living sharks. Here, we have assessed the locomotion energetics of Leedsichthys problematicus, an extinct gigantic suspension-feeder and the largest actinopterygian ever known, shedding light on the metabolic limits of body size in actinopterygians and the possible underlying factors th…