Lumbar plexus block Anesthesia Regional anesthesia
Conditions
Interventions
The operator will seek quadriceps contraction at a threshold of < 0.8 mA and inject the local anesthetics at this target.,The operator will seek psoas muscle contraction and inject the local anestheti
Active Comparator Procedure/Surgery,Active Comparator Procedure/Surgery
NS group,IM group
Sponsors
None
Eligibility
Sex/Gender
All
Age
18 Years to 75 Years
Inclusion criteria
Inclusion criteria: Patients undergoing total hip or knee replacement. American Society of Anesthesiologists classification 1 to 3. Body mass index between 18 and 35.
Exclusion criteria
Exclusion criteria: - pre-existing neuropathy or coagulopathy - renal failure or hepatic failure - allergy to local anesthetics - pregnancy - prior surgery in the area of the lumbar spine - chronic pain syndromes requiring opioid intake at home
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The total anesthesia-related time (sum of performance and onset times) within 30 minutes after the end of the procedure Record the time from applying ultrasound probe on skin until successful lumbar plexus block achieved | — |
Secondary
| Measure | Time frame |
|---|---|
| The performance time within 20 minutes after starting the procedure Record the time from applying ultrasound probe on skin to the end of local anesthetic drug injection,The onset time within 30 minutes after the end of the procedure Record the time from the end of local anesthetic drug injection to successful lumbar plexus block,Complications within 60 minutes after the end of the procedure Record incidences of intravascular injection, intrathecal injection, epidural spread, systemic toxic,The number of needle passes during the procedure Record number of needle passes used to reach the target,The procedural discomfort at the end of the procedure Use visual analog scale from 0 to 10 | — |
Countries
Thailand
Contacts
Public ContactPrangmalee Leurcharusmee
Chiang Mai University
Outcome results
None listed