Comparison of cemented vs uncemented acetabular component positioning using an imageless navigation system.

Hip navigation was used as an assessment tool to compare ability to reproduce trial and definitive acetabular placement in total hip arthroplasty, using cemented and uncemented components. We demonstrated a significant difference in reproducibility between components. Of 20 uncemented cups, 4 (20%) deviated from the target inclination by 5 degrees or more compared to none of 21 in the cemented group (P = .

Does use of a "rim cutter" improve quality of cementation of the acetabular component of cemented exeter total hip arthroplasty?

A randomized controlled trial was performed to assess the effect of a rim cutter device on cement mantles in modern elective total hip arthroplasty using a flanged acetabular component. Forty patients were randomized to a rim cutter (21) or control (19) group. A statistically significant improvement in cement penetration was demonstrated in zone 1 (10.

Pathophysiologic changes and effects of hypothermia on outcome in elective surgery and trauma patients.

Generally, hypothermia is defined as a core temperature <35 degrees C. In elective surgery, induced hypothermia has beneficial effects. It is recommended to diminish complications attributable to ischemia reperfusion injury.

Effects of cardiac contusion in isolated perfused rat hearts.

Myocardial contusion is frequently suspected after blunt chest trauma, but the exact mechanisms of resulting cardiac dysfunction and the time course for enzymatic alterations have not yet been fully understood. Therefore, we investigated pathophysiological aspects of myocardial contusion in a controlled animal model. Male Wistar rat hearts were studied in an isolated perfusion model and were divided into two groups: control (n = 4) and heart contusion (n = 6) groups.