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Study finds length of surgery correlated with blood loss during Bernese PAO
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Investigators of this study found total blood loss during a Bernese periacetabular osteotomy correlated with the length of the procedure.
“The findings suggest that all patients undergoing periacetabular osteotomy, including those having concomitant procedures, may benefit from pre- and intraoperative strategies to conserve blood and avoid allogeneic transfusion,” the authors wrote.
Researchers performed a retrospective study of 41 patients who underwent Bernese periacetabular osteotomy for symptomatic acetabular dysplasia. Patients donated blood prior to surgery, except for 13 patients who did not donate blood. Investigators collected data including demographics, BMI, surgical history, year of the procedure, surgical approach, additional intra-articular surgical procedures, operative time, estimated blood loss, estimated total blood volume and preoperative hemoglobin.
Primary study outcome was total blood volume lost. To determine factors correlated with the percentage of blood volume lost during surgery, investigators used multivariate linear regression analysis. Univariate analysis was performed to test correlations between candidate predictors and the percentage of blood volume lost.
Results showed an average of 30.3% of blood volume was lost during surgery. According to results of the univariate analysis, factors correlated with an increased percentage of blood volume loss included operative time, arthrotomy, femoral head-neck osteochondroplasty, labral procedure, male gender and age. Investigators noted in the final model, operative time was the only factor predictive of increased blood loss.
“Additional procedures, such as femoral head-neck osteochondroplasty and labral repair or debridement performed through an anterior hip arthrotomy at the time of periacetabular osteotomy, were associated with increased operative time,” the researchers wrote. ‒ by Monica Jaramillo
Disclosure: The researchers report no relevant financial disclosures.
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