Contaminants of emerging concern in freshwater fish from four Spanish Rivers.

This study investigated the occurrence of 135 contaminants of emerging concern (CECs) - pharmaceuticals, pesticides, a set of endocrine disrupting compounds (EDCs) (parabens, bisphenols, hormones, triazoles, organophosphorus flame retardants and triclosan), UV-filters, perfluoroalkyl substances (PFASs) and halogenated flame retardants (HFRs) - in 59 fish samples, collected in 2010 in 4 Spanish Rivers (Guadalquivir, Júcar, Ebro and Llobregat). Of the 135 CECs, 76 including 8 pharmaceuticals, 25 pesticides, 10 EDCs, 5 UV-filters, 15 PFASs and 13 HFRs were detected. Pharmaceuticals were the less frequently found and at lower concentrations. Pesticides, EDCs, UV-filters, PFASs and HFRs were detected more frequently (>50% of the samples). The maximum concentrations were 15 ng/g dry weight (dw) for pharmaceuticals (diclofenac), 840 ng/g dw for pesticides (chlorpyrifos), 224 ng/g dw for EDCs (bisphenol A), 242 ng/g dw for UV-filters (EHMC), 1738 ng/g dw for PFASs (PFHxA) and 64 ng/g dw for HFRs (Dec 602). The contaminants detected in fish are commonly detected also in sediments. In light of current knowledge, the risk assessment revealed that there was no risk for humans related to the exposure to CECs via freshwater fish consumption. However, results provide detailed information on the mixtures of CECs accumulated that would be very useful to identify their effects on aquatic biota.

Prótesis de rodilla LCS con plataforma rotatoria. Resultados a medio-largo plazo / LCS rotating platform knee prosthesis. Medium- to long-term results

Objetivorevisar los resultados clínicos y radiológicos de una serie de artroplastias de rodilla con plataforma rotatoria con un seguimiento de 6 a 12 años. Material y métodoestudio retrospectivo de 133 artroplastias intervenidas en nuestro centro, entre 1994 y 2001, mediante la técnica quirúrgica original. Aplicamos el Knee Score y Function Score de la American Knee Society para su valoración clínica y el estudio radiológico correspondiente. Resultadosen 6 (4,5%) prótesis se realizó recambio total o parcial, 2 por infección, otra por luxación de la plataforma rotatoria, una por aflojamiento del componente tibial, una por inestabilidad y otra por dolor de causa incierta. En otras 9 (6,7%) se intervino sin retirar los componentes: 4 por fricción de partes blandas, una infección extraarticular, una fractura de fémur, una resección de calcificación ósea, una protetización de rótula y una fractura de rótula. Todas las complicaciones tuvieron lugar antes del tercer año. No hubo desgaste de los componentes ni osteólisis importantes. La puntuación media para la rodilla y la función fue muy alta (90,6 y 86,5). Conclusioneslos resultados clínico-radiográficos a medio-largo plazo de este diseño protésico con plataforma rotatoria son muy satisfactorios, aunque a costa de un discreto incremento de complicaciones precoces

Purpose: To review the clinical and radiological results of a series of rotating platform knee arthroplasties with a follow-up of 6¿12 years. Materials and methodsRetrospective study of 133 arthroplasties implanted in our hospital between 1994 and 2001 using the original surgical technique. We applied the Knee Score and the Function Score of the American Knee Society in order to carry out the corresponding clinical assessment and radiological study. ResultsSix (4.5%) prostheses were totally or partially revised (2 cases of infection, 1 rotating platform spin out, one loosening of the tibial component, 1 instability and unidentifiable pain). Another 9 (6.7%) were operated without withdrawing any components (4 cases soft tissue friction, one extraarticular infection, one femoral fracture, one bone calcification resection, one patellar prosthetization and one patellar fracture). All complications occurred before the third year. There was no component wear or significant levels of osteolysis. Mean Knee and Function scores were very high: 90.6 and 86.5 respectively. ConclusionsClinical-radiographic medium- to long-term results for this rotating platform prosthetic design are highly satisfactory, albeit at the expense of a slight increase in the number of early complications (AU)

Sagittal fracture of the second cervical vertebral body.

We describe a patient with a sagittal fracture of the second cervical vertebral without neurological involvement. The mechanism is likely to be axial compression and lateral displacement. The fracture was treated in a Minerva plaster cast.