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Hidden blood loss after total hip arthroplasty
Xudong Liu1, Xianlong Zhang, Yunsu Chen
1Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai JiaoTong University, Shanghai, PR China.
Hidden blood loss after total hip arthroplasty (THA) is substantial and often underestimated. Preserving the articular capsule during THA surgery can significantly reduce this hidden blood loss.
Area of Science:
- Orthopedic Surgery
- Surgical Outcomes
- Patient Blood Management
Background:
- Total hip arthroplasty (THA) is a common procedure.
- Perioperative blood loss is a known complication.
- Hidden blood loss (HBL) after THA is not fully characterized.
Purpose of the Study:
- To analyze the characteristics of hidden blood loss after total hip arthroplasty.
- To quantify the extent of HBL compared to observed blood loss.
- To identify factors influencing HBL and evaluate potential mitigation strategies.
Main Methods:
- Prospective study of 1232 patients undergoing THA.
- Calculation of HBL using hematocrit changes and observed blood loss.
- Inclusion of reinfused and transfused blood volumes in calculations.
Main Results:
- Hidden blood loss after THA was significantly larger than observed perioperative losses.
- HBL varied significantly between patients with different diagnoses.
- Retaining and repairing the articular capsule during surgery was associated with decreased HBL.
Conclusions:
- Total hip arthroplasty can lead to substantial, often underestimated, hidden blood loss.
- Careful monitoring of HBL is crucial in THA patients.
- Articular capsule preservation during THA is a recommended surgical technique to minimize HBL.
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