None listed
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: American Society of Anesthesiologists physical status (ASA) I–III patients scheduled for lower extremity surgery, in whom a CSE anesthesia was planned, were enrolled for this study
Exclusion criteria
Exclusion criteria: Patients will be excluded if they had a body mass index (BMI) > 28, clinically obvious or known spinal deformity, infection in the back, allergy to local anesthetic drugs, previous spine surgery, or coagulopathy.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| success rate of puncture; | — |
Secondary
| Measure | Time frame |
|---|---|
| imaging quality score;puncture operation time;adverse effects rate; | — |
Countries
China
Contacts
Beijing Chaoyang Hospital, Capital Medical University