Résumé -Mots clés : Paraquat, insuffisance rénale, cytolyse, fibrose pulmonaire, Guyane Abstract -Objective: Paraquat is a pesticide widely used around the world as herbicide. The toxicity of this molecule on human beings is high as it induces after ingestion liver and renal failure with possible delayed pulmonary fibrosis. After numerous reports about this major toxicity the European authorities decided to withdraw this herbicide of the market in July 2007. The authors report a collective case of poisoning with paraquat in French Guiana in 2011. Method: A teenager boy and his mother ingested paraquat deliberately. Hepatic and renal failures were observed for the young male who was treated with the immunosuppressive protocol treatment in order to prevent the pulmonary complications. His mother rapidly developed multi-organic failure. Results: The young boy's hepatic and renal failure evolved quickly favorably. No respiratory disturbances were reported with him allowing a discharge after 16 days of hospitalization. His mother who ingested higher quantities of paraquat died in 2 days. Conclusion: This collective case proves that 4 years after the prohibition of paraquat in French Guiana it is still possible to observe life-threatening poisonings induced by such a dangerous herbicide.
Background Glenoid bone loss is commonly encountered in cases of rotator cuff tear arthropathy and can create challenges during reverse shoulder arthroplasty. In this study, we sought to investigate the biomechanical properties of a new treatment option for superior glenoid defect, an augmented reverse total shoulder baseplate. Methods Three conditions were examined: non-augmented baseplate without defect, non-augmented baseplate with defect, and augmented baseplate with defect. The augmented baseplates included a 30-degree half wedge which also matched the created superior defect. The samples were cyclically loaded at a 60° simulated abduction angle to mimic baseplate loosening. The migration and micromotion of the baseplate were measured on the superior edge using a 3D Digital Image Correlation System. Results The migration measured in the augmented baseplate showed no significant difference when compared to the no defect or defect cases. In terms of micromotion, the augmented baseplate showed values that were between the micromotions reported for the no defect and defect conditions, but not by a statistically significant amount. Conclusion This study provides biomechanical evidence that augmented baseplates can reduce the amount of micromotion experienced by the RSA construct in the presence of significant superior glenoid bone deficiency, but do not fully restore stability to that of a full contact non-augmented baseplate.
Crise sanitaire et ralentissement du processus d'ouverture vers l'extérieur d... Revue francophone sur la santé et les territoires , Pandémie, crises et perspectives : lectures territoriales de la Covid-19 Crise sanitaire et ralentissement du processus d'ouverture vers l'extérieur d... Revue francophone sur la santé et les territoires , Pandémie, crises et perspectives : lectures territoriales de la Covid-19 Crise sanitaire et ralentissement du processus d'ouverture vers l'extérieur d... Revue francophone sur la santé et les territoires , Pandémie, crises et perspectives : lectures territoriales de la Covid-19
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