Knee joint injury
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: ASA physical status I~II, age 18~50yr, weight 50~75kg, scheduled to undergo knee joint surgery with combined lumbar plexus-sciatic nerve block.
Exclusion criteria
Exclusion criteria: patient refusal, anticoagulant treatment, allergy to local anesthetics, neurologic or neuromuscular disease, severe liver or renal insufficiency, women of childbearing age or patients unlikely to be fully cooperative during the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| concentration of ropivacaine;concentration of lidocaine;time to sensory recover; | — |
Secondary
| Measure | Time frame |
|---|---|
| Sensory onset time; | — |
Countries
China