Orthopedic system diseases
Conditions
Interventions
Axillary Brachial Plexus Block Group:0.5% Ropivacaine 30ml
Femoral nerve block group:0.5% Ropivacaine 20ml
Iliac fascia compartment block group:0.5% Ropivacaine 30ml
Sciatic Nerve Block Group:0.5% Ropivacaine 20ml
Sponsors
Beijing Jishuitan Hospital, Capital Medical University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Elective limb surgery patients planned to undergo axillary brachial plexus block, femoral nerve block, fascia iliaca compartment block, or sciatic nerve block for anesthesia or analgesia; 2. Age >=18 years; 3. ASA class I-II; 4. Written informed consent.
Exclusion criteria
Exclusion criteria: 1. Comorbid diabetes; 2. Comorbid peripheral neuropathy; 3. Presence of nerve damage, musculoskeletal deformity, scars, or surgical history in the area to be examined; 4. Presence of contraindications to peripheral nerve block (allergy to local anesthetics, coagulation disorders, infection at the procedure site, etc.); 5. Other factors that hinder the patient's cooperation with the study protocol.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| change of the stiffness of the target nerve at the puncture site measured with SWE 5 minutes after nerve block; | — |
Secondary
| Measure | Time frame |
|---|---|
| change of the stiffness of the target nerve at the puncture site measured with SWE 10,20 and 30 minutes after nerve block;change of the stiffness of the target nerve at 15 cm distal to the puncture site measured with SWE 5,10,20 and 30 minutes after nerve block;Nerve block effect;Cross-sectional area of the target nerve 5 minutes before and after nerve block; | — |
Countries
China
Contacts
Public ContactLi Xu
Beijing Jishuitan Hospital, Capital Medical University
Outcome results
None listed