None
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Patients undergoing low lumbar posterior decompression and fixation fusion surgery, ASA grade I, II, aged 18 to 80 years.
Exclusion criteria
Exclusion criteria: Patients Refusal, L2-3 has a herniated disc and neurological symptoms, have history of severe bronchial lung disease, sleep apnea, long-term application of opioid drugs, drug addiction, blood coagulation dysfunction, puncture infection, comprehension obstacles, inability to understand pain digital evaluation questionnaire), uncontrolled hypertension, diabetes, glaucoma and body mass index> 32.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Volume of postoperativesufentanil; | — |
Countries
China
Contacts
Peking University Third Hospital