Hård af Segerstad M, et al. - In 22 patients randomly receiving either cemented (n = 10) or uncemented (n = 12) hip arthroplasty for isolated femoral neck fracture, researchers studied the impacts of bone cement on pulmonary and systemic hemodynamics. The mean arterial pressure, pulmonary arterial pressure, cardiac output, right ventricular (RV) end-diastolic volume (RVEDV) and RV ejection fraction (RVEF) were continuously assessed via radial- and pulmonary artery catheters. At the following time-points, hemodynamic measurements and blood gas analyses were done: after induction of anesthesia, during surgery before and immediately after bone cementation and prosthesis insertion, 10 and 20 minutes after insertion, and during skin closure. Increases in pulmonary vascular resistance and the afterload of the RV were seen as a result of using bone cement in total hip arthroplasty. RV performance was potentially negatively affected as a result of the use of bone cement.