Implant retention and prologued antibiotic treatment for an infected total hip replacement causing fungal periacetabular osteolysis.

We present a periprosthetic fungal infection with massive acetabular osteolysis due to a prologued treatment with antibiotics of a primary infection of a total hip arthroplasty (THA). This case exemplifies how this inadequate approach can lead to a severe complication. The resolution of the case was performed with a 2-stage revision of the THA

Study of the initial development of seedlings and leaves in Digitaria sanguinalis plants for two types of germination at different densities

Se realizó un experimento para caracterizar de forma particular e independiente el crecimiento de plantas individuales de Digitaria sanguinalis. A partir de las variables originales medidas sobre las plantas, se estimaron parámetros relacionados con la aparición de hijuelos y hojas durante el inicio del desarrollo de las plantas. Se compararon entre si los resultados considerando tratamientos que combinaban los dos tipos de germinación de la especie y tres densidades distintas (1, 3 y 5 plantas por maceta). Se tomaron datos de un total de 30 plantas, 10 por cada nivel de densidad. De cada decena, había la mitad con cada tipo de pauta de germinación (radicular y coleoptilar). También se determinó la correlación entre las variables estudiadas. El tratamiento resultó ser un factor significativo para todas las tasas de hojas e hijuelos estudiadas. Además, las correlaciones entre estas tasas fueron positivas y muy significativas. Sin embargo, no hubo diferencias entre las medias de los tratamientos para las variables de cese de la aparición de hijuelos y hojas en el tallo principal. Con este trabajo se han obtenido datos preliminares que conducen a la construcción de un modelo funcional-estructural que represente el crecimiento de malas hierbas, como D. sanguinalisPostprint (published version

Absolute properties of the low-mass eclipsing binary CM Draconis

Spectroscopic and eclipsing binary systems offer the best means for determining accurate physical properties of stars, including their masses and radii. The data available for low-mass stars have yielded firm evidence that stellar structure models predict smaller radii and higher effective temperatures than observed, but the number of systems with detailed analyses is still small. In this paper we present a complete reanalysis of one of such eclipsing systems, CM Dra, composed of two dM4.5 stars. New and existing light curves as well as a radial velocity curve are modeled to measure the physical properties of both components. The masses and radii determined for the components of CM Dra are M1=0.2310+/-0.0009 Msun, M2=0.2141+/-0.0010 Msun, R1=0.2534+/-0.0019 Rsun, and R2=0.2396+/-0.0015 Rsun. With relative uncertainties well below the 1% level, these values constitute the most accurate properties to date for fully convective stars. This makes CM Dra a valuable benchmark for testing theoretical models. In comparing our measurements with theory, we confirm the discrepancies reported previously for other low-mass eclipsing binaries. These discrepancies seem likely to be due to the effects of magnetic activity. We find that the orbit of this system is slightly eccentric, and we have made use of eclipse timings spanning three decades to infer the apsidal motion and other related properties.Comment: 19 pages, 9 figures. Accepted for publication in Ap

Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries