Influence of MC3T3-E1 preosteoblast culture on the corrosion of a T6-treated AZ91 alloy.

This study investigated the corrosion of artificially aged T6 heat-treated Mg-9%Al-1%Zn (AZ91) for biomedical applications. Corrosion tests and surface analysis were completed both with and without a monolayer of mouse preosteoblast MC3T3-E1 cells cultured on the sample. Electrochemical impedance spectroscopy (EIS) and inductively coupled plasma mass spectroscopy (ICPMS) were used to explore the corrosion processes after either 3 or 21 days of AZ91 incubation in cell culture medium (CCM).

Femoral nerve block for diaphyseal and distal femoral fractures in the emergency department. Surgical technique.

Background: Diaphyseal and distal femoral fractures are painful injuries that are frequently seen in patients requiring a trauma work-up in the hospital emergency department prior to definitive management. The purpose of this study was to determine whether a femoral nerve block administered in the emergency department could provide better pain relief for patients with femoral fractures than currently used pain management practices.

Methods: Patients who presented with an acute diaphyseal or distal femoral fracture were identified as potential candidates for this study.

Femoral nerve block for diaphyseal and distal femoral fractures in the emergency department.

Background: Diaphyseal and distal femoral fractures are painful injuries that are frequently seen in patients requiring a trauma work-up in the hospital emergency department prior to definitive management. The purpose of this study was to determine whether a femoral nerve block administered in the emergency department could provide better pain relief for patients with femoral fractures than currently used pain management practices.

Methods: Patients who presented with an acute diaphyseal or distal femoral fracture were identified as potential candidates for this study.