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Intraoperative monitoring for safety of total hip arthroplasty using third-generation cementing technique
Zi-jian Li1, Ke Zhang, Hong Yang
1Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China.
Insights
The third-generation cementing technique for total hip arthroplasty (THA) is safe, showing no significant intraoperative changes in vital signs or oxygen levels. This technique is equally safe for patients with acute femoral neck fractures and non-traumatic cases.
Area of Science:
- Orthopedic Surgery
- Anesthesiology
- Cardiopulmonary Physiology
Background:
- Decades-long debate exists regarding the safety of cement application in cemented versus uncemented total hip arthroplasty (THA).
- Intraoperative hemodynamic and respiratory stability during cemented THA requires further investigation.
- Specific risks associated with acute femoral neck fracture patients undergoing cemented THA remain a concern.
Purpose of the Study:
- To monitor changes in mean arterial pressure (MAP), heart rate (HR), and arterial oxygen pressure (PaO2) during cemented THA.
- To evaluate the intraoperative safety of the third-generation cementing technique.
- To compare intraoperative risks between acute femoral neck fracture and non-traumatic patients.
Main Methods:
- Prospective study of 42 patients undergoing cemented THA using third-generation technique (vacuum mixing, pulsatile lavage).
- Continuous monitoring of MAP and HR; blood gas analysis (PaO2) at key surgical stages.
- Comparison of hemodynamic and respiratory parameters pre- and post-cement application, and between fracture types.
Main Results:
- No intraoperative cardiopulmonary complications were recorded.
- No significant changes in MAP, HR, or PaO2 were observed after cement application.
- No significant differences in MAP, HR, or PaO2 were found between acute femoral neck fracture and non-traumatic patient groups.
Conclusions:
- The third-generation cementing technique is safe for cemented total hip arthroplasty.
- Invasive blood pressure monitoring and blood gas analysis are crucial during cemented THA, particularly for fracture patients.
- Intraoperative risk is not elevated in acute femoral neck fracture patients compared to non-traumatic cases when using this technique.
Background:
Controversies on the safety of the cement application between cemented and uncemented total hip arthroplasty (THA) have been existing for decades. The purpose of this study was to observe the changes in mean arterial pressure (MAP), heart rate (HR) and oxygen pressure (PaO(2)) during cemented THA, and to evaluate the intraoperative safety of using the third-generation cementing technique and investigate whether the intraoperative risk is higher in acute femoral neck fracture patients than non-traumatic patients.
Methods:
Forty-two patients who underwent cemented THA between November 2005 and September 2007 were prospectively included in this study. The third-generation cementing technique as vacuum mixing and pulsatile lavage was used strictly. The MAP and HR were monitored and documented during each operation. Blood gas analysis was performed at exposure, cup implantation, stem implantation and wound closure. MAP, HR and PaO(2) were compared between pre- and post-cement application. Comparisons of MAP, HR and PaO(2) between patients with acute femoral neck fracture and non-traumatic patients were performed as well.
Results:
No intraoperative cardiopulmonary complication occurred in these cases. No obvious changes were observed in MAP, HR and PaO(2) after cement application. There was no significant difference in MAP, HR and PaO(2) between acute femoral fracture patients (18 patients) and non-traumatic patients (24 patients).
Conclusions:
The results of this study suggested that the invasive blood pressure monitoring and blood gas analysis are essential for patients undergoing cemented THA, especially for patients with femoral neck fracture. The third-generation cementing technique is safe to use in THA.
