Nerve block rebound pain
Conditions
Interventions
Pre-FNB group:Femoral nerve block before operation
Post-FNB group:Femoral nerve block after operation
Sponsors
Anhui Provincial Hospital of the First Affiliated Hospital of the University of Science and Technology of China
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Patients undergoing total knee replacement or unicondylar knee replacement; 2. Age < 80 years; 3. ASA classification I-III; 4. No history of long-term opioid treatment.
Exclusion criteria
Exclusion criteria: 1. Coagulation dysfunction; 2. Systemic or puncture site infection; 3. Allergy to local anesthetics; 4. Peripheral nervous system diseases or femoral nerve block (FNB) affecting nerve damage; 5. Severe heart (New York Heart Association Class III-IV), lung (forced expiratory volume in 1 second < 50% of predicted value), kidney or liver dysfunction; 6. Ongoing continuous pain relief treatment before surgery.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The incidence of rebound pain during preoperative and postoperative femoral nerve block;Patient satisfaction;Usage time of tourniquet; | — |
Secondary
| Measure | Time frame |
|---|---|
| Time of rebound pain occurrence;Duration of sensory blockade;Duration of motor block;Minimum postoperative VAS score;The highest postoperative VAS score; | — |
Countries
China
Contacts
Public ContactXin Wei
Anhui Provincial Hospital of the First Affiliated Hospital of the University of Science and Technology of China
Outcome results
None listed