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Functional outcomes after ankle fracture-dislocation: a systematic review.
Arch Orthop Trauma Surg
January 2025
Department of Orthopaedic Surgery, Washington University in St. Louis School of Medicine, St. Louis, MO, USA.
Introduction: Ankle fractures represent a significant portion of orthopedic injuries, with fracture dislocations tending to have worse outcomes. Logsplitter fractures represent a subset of fracture dislocations in which the talus is axially wedged in the tibiofibular joint. We aim to comprehensively investigate and report on the complications and functional outcomes associated with ankle fracture-dislocations.
View Article and Find Full Text PDFPreservation of the azygos vein versus ligation of the azygos vein during primary surgical repair of congenital esophageal atresia.
Cochrane Database Syst Rev
January 2025
Neonatal Intensive Care Unit, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.
Background: Esophageal atresia is one of the most common life-threatening congenital malformations and is defined as an interruption in the continuity of the esophagus with or without fistula to the trachea or bronchi. Definitive treatment is surgical ligation of the fistula if present and esophageal end-to-end anastomosis of the two pouches, thereby reconstructing the continuity of the esophagus. During this procedure, the surgeon may choose to either ligate or preserve the azygos vein, a major draining vein for the esophagus and surrounding structures, but no definitive consensus on the matter exists.
View Article and Find Full Text PDFDistributed Representations for Cognitive Control in Frontal Medial Cortex.
J Cogn Neurosci
December 2024
In natural and artificial neural networks, modularity and distributed structure afford complementary but competing benefits. The former allows for hierarchical representations that can flexibly recombine modules to address novel problems, whereas the latter can benefit from less constrained training, potentially uncovering fruitful statistical regularities. Here, we investigate these competing demands in the context of human sequential behavior.
View Article and Find Full Text PDFPurpose Of The Study: Intraarticular fractures of the distal femur rank among the most severe musculoskeletal injuries. Various treatment options, such as plate osteosynthesis or retrograde nailing, can be employed. This study aims to evaluate the clinical outcomes and complications of intraarticular distal femoral fractures treated with retrograde femoral nail, with particular emphasis on C3 fractures.
View Article and Find Full Text PDFStructural Categorization of Adenine, Guanine, and Xanthine Derivatives Using Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry with 5-Nitrosalicylic Acid and 1,5-Diaminonaphtalene.
J Am Soc Mass Spectrom
January 2025
Suntory Institute for Bioorganic Research, Suntory Foundation for Life Sciences, 8-1-1 Seikadai, Seika-Cho, Soraku-Gun, Kyoto 619-0284 Japan.
In this study, we analyzed purine derivatives using multimatrix variation matrix-assisted laser desorption ionization mass spectrometry (MALDI MS) with α-cyano-4-hydroxycinnamic acid (CHCA), 1,5-diaminonaphtalene (DAN), 5-formylsalicylic acid (FSA), and 5-nitrosalicylic acid (NSA) as matrices. Further, we focused on the abstraction/attachment of hydrogen from/to analytes and detected [M - H], [M + 2H] and/or [M + 3H] in MALDI MS spectra of compounds containing nitrogen and/or carbonyl oxygen. Although [M - H] generation of purine compounds in MALDI MS with conventional matrices was challenging, NSA-MALDI MS effectively yielded the [M - H]species of purine derivatives compared with CHCA, FSA, and DAN, and the [M - H]/[M + H] ratios reflected their structures, such as the substituting groups and positions.
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