Arthroscopic removal of an osteoid osteoma of the acetabulum

In this case report, we describe the arthroscopic removal of an osteoid osteoma from the acetabulum in a young adolescent. After identifying the osteoid osteoma close to the cartilage with MRI and CT investigations, we decided that in this case, arthroscopic removal was the best treatment. In the case of an osteoid osteoma in the acetabulum close to the cartilage, arthroscopic removal should be considered as one can treat the associated osteochondritic lesion during this procedure

Analysis of factors influencing the ultrasonic fetal weight estimation

Objective: The aim of our study was the evaluation of sonographic fetal weight estimation taking into consideration 9 of the most important factors of influence on the precision of the estimation. Methods: We analyzed 820 singleton pregnancies from 22 to 42 weeks of gestational age. We evaluated 9 different factors that potentially influence the precision of sonographic weight estimation ( time interval between estimation and delivery, experts vs. less experienced investigator, fetal gender, gestational age, fetal weight, maternal BMI, amniotic fluid index, presentation of the fetus, location of the placenta). Finally, we compared the results of the fetal weight estimation of the fetuses with poor scanning conditions to those presenting good scanning conditions. Results: Of the 9 evaluated factors that may influence accuracy of fetal weight estimation, only a short interval between sonographic weight estimation and delivery (0-7 vs. 8-14 days) had a statistically significant impact. Conclusion: Of all known factors of influence, only a time interval of more than 7 days between estimation and delivery had a negative impact on the estimation

Challenges for Rural Livelihoods, Participatory Agroforestry, and Biodiversity Conservation in a Neotropical Biosphere Reserve in Mexico

We report on 10 years of participatory research processes linking livelihoods, agroforestry, and conservation in the La Sepultura Man and the Biosphere (MAB) Reserve in Chiapas, Mexico. These processes entail both cooperation and conflict between farmers and external actors who try to create and/or prevent the collapse of “nature-friendly” land uses. We developed a multidimensional research agenda with the participation of 12 communities and many graduate students. This agenda began with the promotion and monitoring of experimental fodder-tree plantations to counter dry season livestock starvation and forest degradation. Poor adoption of fodder trees motivated us to explore the history, conditions, needs, and motivations of farmers in this territory, and how these play out in their interaction with other actors when implementing agroforestry projects linked explicitly with biodiversity conservation. We report an analysis of three processes: (1) efforts to promote fodder-tree plantations as a means to intensify and move livestock production away from forest browsing; (2) “conservation” shade-coffee production in which benefits for farmers and forests are dubious, which also might collapse due to recent rust epidemics; (3) Pinus oocarpa resin extraction in pine-grass rangelands, where cattle exclusion, fire use prohibition, and unfavorable market deals could render this activity unsustainable. We reflect on how silvopastoral and agroforestry projects constitute an unstable balancing act among actors in this MAB reserve (and probably in similar ones). We discuss what participatory processes seem promising and need to be developed for the sake of long-term decent rural livelihoods and high-quality conservation landscapes