Perioperative management
blood loss
BLOOD LOSS
All patients were given 60 mg Etocoxib tablets daily for analgesia 3 days before surgery. Surgical anesthesia used general anesthesia without regional block and were completed by anesthesiologists proficient in general anesthesia. General anesthesia were induced in the induction room using anesthesia machine face mask inhalation induction method (Sufentanil Citrate Injection, 50 ug/ml, 0.1–5.0 ug/kg for opioids). Gradually increase the inhalation concentration during the induction of anesthesia, and when the patient's consciousness disappears and enter the third phase of anesthesia, intratracheal intubation can be performed by intratracheal infusion of muscle relaxants. The maintenance of general anesthesia (Remifentanil Hydrochloride for Injection, 50 ug/ml, 0.5–1 ug/kg for opioids) was maintained by continuous injection of intravenous anesthetics in the operating room to meet the requirements of the operation and the management of the patient, and to ensure the stability of physiological functions such as circulation and breathing.Operations were performed by the same team of experienced surgeons using the same surgical method. Tranexamic Acid and Sodium Chloride Injections (0.5 g, 3 vessel) were injected intravenously before the skin incision to reduce perioperative blood loss. After waiting for the implantation of the intraoperative prosthesis, the surgeon implemented LIA (200 mg 1% Ropivacaine Hydrochloride Injection, 100 mg Flurbiprofen Axetil Injection, 1 mg Epinephrine, 0.9% normal saline (NS)) and injected the mixture into muscles and subcutaneous tissues to ensure complete coverage of the joint structure [