postoperative analgesia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: patients scheduled to undergo elective unilateral knee replacement; aged >=65 years; ASA I or II.
Exclusion criteria
Exclusion criteria: A history of knee replacement; a history of allergy with morphine or local anesthetics; a history of continuous use analgesic for two weeks or more; a history of peptic ulcer or hemorrhage; peripheral neuropathy; morbid obesity (BMI>40); blood platelet count<8*10^9/l; coagulation disorders; infection of puncture site; a history of mental illness;inapprehension of VAS
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| VAS, retention catheterization, nausea and vomiting, pruritus; | — |
Countries
China
Contacts
The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University