The proposed four-column classification showed the highest intra and inter-observer agreement. When taking into account the agreement that occurs by chance, Schatzker classification showed the highest inter-observer kappa, but again the four-column had the highest intra-observer kappa value. The proposed classification is a more inclusive classification for the posteromedial and posterolateral fractures. We suggest, therefore, that it be used in addition to one of the classic classifications in order to better understand the fracture pattern, as it allows more attention to be paid to the posterior columns, it improves the surgical planning and allows the surgical approach to be chosen more accurately.
Background: Anterior knee pain has been associated with sports activity, especially long-distance running and endurance sports. It is important to determine the incidence of anterior knee pain (AKP) in runners after a half-marathon race and identify possible risk factors associated. Methods: Cross-sectional study where runners from a half marathon race were randomly invited to participate. Participants were recruited at the race kit pickup site the day before the race. Eligible participants completed a survey regarding demographic information, running experience and training details. An orthopedic surgeon performed a physical examination and recorded the medical history. At the finish line, the participants were evaluated again for possible new injuries. Results: A total of 205 runners were included in the study, with a 98.5% follow-up rate (n ¼ 203). 24% of runners had an injury at the end of the race (n ¼ 49). Anterior knee pain was the most frequent injury (n ¼ 12), followed by iliotibial band syndrome (n ¼ 10), muscle cramps (n ¼ 7) and hamstring tears (n ¼ 4). Anterior knee pain had a statistically significant association with insufficient stretching of the hamstrings (p ¼ 0.048) and finishing the race in more than 2 h (p ¼ 0.014). Conclusions: Anterior knee pain was the most frequent new injury in the half-marathon runners after the competition. Spending more than 2 h to finish the race and stretching the hamstrings by less than 70 in the supine position were risk factors for anterior knee pain.
<strong>Objetivo:</strong>describir la experiencia de dos casos de gestantes con estenosis mitral valvular, llevadas a valvuloplastia percutánea con balón y dilatación como alternativa terapéutica para contrarrestar los riesgos de colapso y deterioro materno-fetal y permitir la progresión del embarazo sin complicaciones cardiovasculares o el deterioro funcional, y realizar una revisión de la literatura publicada sobre la realización del procedimiento en gestantes.<p><strong>Materiales y métodos:</strong> se presentan dos casos de estenosis mitral severa y compromiso funcional asociado, de aparición en el segundo trimestre del embarazo, atendidos en una institución de cuarto nivel de complejidad, centro de referencia regional. Se manejaron por medio de valvuloplastia mitral con balón, con desenlaces clínicos maternos perinatales favorables. La revisión de la literatura se hizo a partir de los términos: “valvuloplastia”, “estenosis mitral” y “embarazo”. Se realizó una búsqueda en la base de datos Medline vía PubMed, Medes y Scopus. Se excluyeron los procedimientos descritos que estaban dirigidos al reparo valvular del feto. Los estudios se centraron en los hallazgos diagnósticos y el curso del procedimiento quirúrgico.</p><p><strong>Resultados: </strong>se identificaron doce títulos. Los resultados obtenidos son comparables a los reportes de casos de estenosis de válvula mitral con procedimiento asistido por balón para dilatación de la válvula. En general, el procedimiento es exitoso, incrementa el área de la válvula mitral y reduce el gradiente de presión en la válvula. No obstante, existe el riesgo de desarrollar insuficiencia de válvula mitral tras la conducta, trombosis y muerte.</p><p><strong>Conclusión:</strong> la valvuloplastia percutánea con balón y dilatación como alternativa terapéutica es una opción por considerar en el manejo de la estenosis mitral en la gestante con deterioro de la clase funcional y el aumento durante el seguimiento de la presión en cuña pulmonar. Se requieren estudios controlados que validen los resultados de los estudios observacionales.</p>
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