Hip preservation has emerged as a developing surgical subspecialty with a variety of tools to address hip joint pain and dysfunction. Cartilage tears and delamination are caused by injury to the hip and can ultimately progress to osteoarthritis. It has been established that the acetabulum is particularly at risk of cartilage injury secondary to trauma, hip dysplasia and hip impingement. In spite of the high frequency of acetabular cartilage lesions based on our experience and the literature, there is no consensus as to the optimal treatment of these lesions. This review article highlights the challenges in treating cartilage injuries of the acetabulum with a particular emphasis on published studies and technical considerations in performing these procedures.
En esta investigación se desarrolla un cuestionario de autoevaluación para medir el conocimiento del profesorado universitario de Matemática sobre la integración tecnológica en las aulas. El modelo Technological Pedagogical Content and Knowledge (TPACK) es reconocido por la comunidad científica para describir la comprensión de los docentes sobre la compleja interacción entre contenido, pedagogía y tecnología. Se adapta el cuestionario de Schmidt et al. (2009) al ámbito de las Matemáticas. El cuestionario está compuesto por 28 ítems y se evalúan mediante una escala Likert de cuatro niveles (1: nunca; 4: siempre). La muestra fue de 183 docentes universitarios de Matemáticas. El análisis de modelos de ecuaciones estructurales se utilizó para examinar los factores del modelo TPACK. Los resultados confirman el modelo de siete factores e indican que el TPACK percibido por el profesorado se correlaciona de manera positiva con todos los demás factores. Finalmente, se concluye que el instrumento es válido y fiable.
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