World Neurosurg
-
The incidence of retractions has been increasing steadily, in direct proportion to the volume of scientific literature. Retraction of published articles depends on the visibility of journals and on postpublication scrutiny of published articles by peers. The possibility thus exists that not all compromised ("retractable") articles are detected and retracted from the less-visible journals. The proportion of "retractable" articles and its converse, the proportion of published articles in each journal that are likely to be "true" (PTP), have not been estimated hitherto. ⋯ Neurosurgery as a discipline had a higher RGap but also a higher PTP than the other 2 groups.
-
This study aimed to investigate the safety and efficacy of endovascular embolization for very small ruptured anterior communicating artery (AcomA) aneurysms. ⋯ Coiling with or without stent-assisted technique for the treatment of very small ruptured AcomA aneurysms was safe and effective.
-
Loosening of pedicle screws is a frequently observed complication in spinal surgery. Because additional stabilization procedures such as cement augmentation or lengthening of the instrumentation involve relevant risks, optimal stability of the primarily implanted pedicle screw is of essential importance. The aim of the present study was to investigate the effect of increasing the screw diameter on pedicle screw stability. ⋯ Increasing the pedicle screw diameter from a standard 6-mm screw to the largest possible diameter (8-10 mm) led to a significantly greater fatigue load.