Bleeding and surgical time in knee arthroplasty using robotic assistance with and without the use of a tourniquet
JPF Guerreiro, JVD Balan, MMH Vilhena, SGMV Filho, PR Bignardi, MV DanieliObjectives
To compare bleeding and surgical time in patients undergoing Total Knee Arthroplasty (TKA) with robotic assistance with and without the use of a tourniquet.
Methods
Retrospective study with analysis of medical records. Patients were divided into two groups: one group in which robotic-assisted TKA was performed using a tourniquet and the other without. Hemoglobin change and hematocrit at 24 hours after surgery, the volume of bleeding, number of transfusions and surgical time were compared.
Results
108 patients were included. The group using a tourniquet totaled 59 patients and the group without a tourniquet 49 patients. There was no difference between the mean hemoglobin and hematocrit values between the groups, preoperatively (p = 0.287 and p = 0.508) and 24 hours (p = 0.252) after surgery. There was also no difference between the volume of bleeding in each group (p = 0.265). Surgical time was not different between groups (p = 0.179). There was no need for transfusions in any patient.
Conclusion
TKA surgeries with robotic assistance performed with and without the use of a tourniquet showed no significant difference in Hb change and Ht levels 24 hours after surgery, estimated bleeding volume, transfusions and surgical time.