Risk Factors for Failure of Non-operative Management in Isolated Unilateral Non-displaced Facet Fractures of the Subaxial Cervical Spine: Systematic Review and Meta-Analysis.

Study Design: systematic review.

Objective: To evaluate risk factors associated with failure of non-operative management of isolated unilateral facet fractures of the subaxial cervical spine in neurologically intact patients.

Methods: A systematic review of the PubMed, Embase, LILACS, and Cochrane Library databases was conducted in order to determine risk factors associated with failure of non-operative management in isolated unilateral facet fractures of the subaxial cervical spine without facet and/or vertebral displacement, in neurologically intact patients.

Structure and Antigenicity of the Porcine Astrovirus 4 Capsid Spike.

Porcine astrovirus 4 (PoAstV4) has been recently associated with respiratory disease in pigs. In order to understand the scope of PoAstV4 infections and to support the development of a vaccine to combat PoAstV4 disease in pigs, we designed and produced a recombinant PoAstV4 capsid spike protein for use as an antigen in serological assays and for potential future use as a vaccine antigen. Structural prediction of the full-length PoAstV4 capsid protein guided the design of the recombinant PoAstV4 capsid spike domain expression plasmid.

Time to Surgery for Subaxial Cervical Fractures: A Multicenter Study.

Objective: To identify delays for surgery to stabilize subaxial cervical fractures and the main reasons for them across Latin America.

Methods: This is a retrospective multicenter cohort study of patients surgically treated for subaxial cervical fractures from 13 spine centers across Latin America from January 1, 2014 to January 1, 2023. Causes of delay to surgery beyond 24 hours were documented.

The pragmatic role of FEF in asymptomatic subjects, allergic rhinitis, asthma, and in military setting.

: The forced expiratory flow between 25% and 75% of forced vital capacity (FEF) is a spirometry parameter that may be useful in many clinical settings. Values <65% of predicted have been defined as abnormal.: The current report discusses the clinical value of FEF in different settingv, namely military medicine, primary care, and specialized clinic.