Osteoarthritis of the knee
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: (1) Patients requiring unilateral primary TKA surgery due to severe osteoarthritis of the knee; (2) 40~80 years old; (3) Body mass index was 20~35 kg/m2; (4) the American Society of Anesthesiologists (American Society of Anesthesiologists, ASA) classification (anesthesia risk assessment) is I ~ III level.
Exclusion criteria
Exclusion criteria: (1) Simultaneous operation of both knee joints; (2) Patients with blood diseases, diabetes, malignant tumors and abnormal coagulation function; (3) Patients with a history of myocardial infarction, cerebral infarction, pulmonary embolism and other thrombosis; (4) Those who received anticoagulant therapy within 6 months before operation; (5) Persons with severe knee malformation and previous history of knee surgery (6) Persons allergic to narcotic drugs and sulfanilamide; (7) Alcoholism or long-term use of opioids; (8) Language impairment and inability to complete Visual analogue Scale (VAS); (9) Surgical limb neuropathy; (10) Persons with mental illness; (11) Patients with digestive tract ulcer.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The duration of surgery;The duration od tourniquet use;Postoperative dosage of remedial morphine hydrochloride;VAS pain score;Degree of knee joint swelling (leg circumference);Range of knee motion;Strength of lower limb muscles;LOS (length of stay);The incidence of adverse events;Intraoperative blood loss;Dominant blood loss;Hidden blood loss;Total perioperative blood loss;C-reactive protein;Interleukin - 6; | — |
Countries
China
Contacts
West China Hospital, Sichuan University