Knee unicompartmental arthroplasty
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: (1) Patients with knee osteoarthritis aged 65~80 years old who electively plan to undergo unicompartmental knee arthroplasty (UKA); (2) American Society of Anesthesiologists (ASA) grade I.~II.; (3) Those who are conscious and able to cooperate; (4) Those with normal coagulation function; (5) The preoperative VAS score of the patient > 4 points; (6) Patients and their families sign the informed consent form
Exclusion criteria
Exclusion criteria: (1) Contraindications to femoral nerve block: the patient has severe coagulation dysfunction; Infection at the site of block; The preoperative patient is too anxious and refuses to accept the nerve block operation, etc.; (2) Those with mental, verbal or hearing impairments; (3) Frequent use of opioids, history of alcoholism and drug abuse; (4) Patients with severe heart, liver, lung, brain and other organ dysfunction before surgery; (5) The patient has other diseases that may cause severe chronic pain before surgery; (6) History of allergy to local anesthetics; (7) Patients with a preoperative VAS score of < 4.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The visual analogy VAS (VAS) scores of pain are recorded in the two groups 4h (T1), 12h (T2), 24h (T3) and 48h (T4) after surgery ; | — |
Secondary
| Measure | Time frame |
|---|---|
| The knee society score system (KSS) scores are measured in the two groups before and 24 hours and 48 hours after surgery;The incidence of rescue analgesia at 48 hours after surgery in the two groups was measured;Heart rate (HR), mean arterial pressure (MAP), respiratory frequency (RF), and the amount of opioids used within 72 hours after surgery were recorded in the two groups at the time of admission (T0), 4 hours (T1), 12 hours (T2), 24 hours (T3) and 48 hours (T4).; | — |
Countries
China
Contacts
Suzhou Municipal Hospital