Blood loss in total knee arthroplasty：an analysis of risk factors
Objective Carried out a retrospective study to determine the risk factors affecting the hidden blood loss, peri-operative blood loss and blood transfusion requirements in a primary total knee arthroplasty(TKA). Methods We included a total of 68 consecutive patients who underwent primary TKA by a single surgeon. The risk factors of blood loss and blood transfusion analysed were gender, tourniquet time and body mass index(BMI). Results There was significantly less peri-operative blood loss in females patients than in male. The BMI did not show any correlation with peri-operative blood loss. The amount of hidden blood loss in our series was 39%. The tourniquet time and the surgical time showed a positive correlation with peri-operative blood loss. Conclusions Our results indicate that tourniquet time and gender plays an important role in blood loss in TKA. The blood transfusion depends on both intra-operative blood loss and pre-operative haemoglobin value. The post-operative transfusion trigger can be brought to 80g/L in a haemodynamically stable patient.
NETL
NSTL
万方数据
维普
