Abstract Objective To investigate the effects of different tourniquet strategies on the perioperative blood loss,postoperative function and complications of unicompartmental knee arthroplasty.Methods 97 patients who underwent primary UKA in our hospital from January 2018 to December 2018 were retrospectively reviewed and divided into the whole process group (12 males and 21 females),the optimized group (11 males and 19 females) and no tourniquet group (13 males and 21 females),according to the way of tourniquet use.We recorded the operation time,intraoperative blood loss,postoperative drainage,recessive blood loss,VAS score and swelling rate on the first postoperative day,range of motion at discharge,hospital stays and number of complications and collected knee HSS score at follow-up.Results The operation time of the whole process group and the optimized group was shorter,and the amount of intraoperative blood loss was less (P<0.05).However,the postoperative drainage,hemoglobin reduction,recessive blood loss,VAS score swelling rate,range of motion,the number of minor complications,the hospital stay and the HSS score at one month were significantly betterin the optimized group and the no tourniquet group than in the whole process group (P<0.05).There was no statistically significant difference in the number of severe complications and the HSS score at follow-up between the three groups (P>0.05).Conclusion During Unicompartmental Knee Arthroplasty,optimization of tourniquet usage can effectively reduce intraoperative blood loss and reduce the operation time,without affecting the early recovery of the patient and increase the incidence of complications.
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