Patients with advanced age or excessive obesity who undergo elective hip or knee replacement surgery for the first time
Conditions
Interventions
Group A:Less-experienced middle-aged anesthesiologists complete ultrasound-guided lumbar plexus block with the assistance of multimodal real-time recognition and navigation tools
Group B :Experts use ultrasound alone to complete ultrasound-guided lumbar plexus block
Sponsors
Renmin Hospital of Wuhan University
Eligibility
Sex/Gender
All
Age
18 Years to 110 Years
Inclusion criteria
Inclusion criteria: 1.Voluntary signing of informed consent form 2.Promise to comply with research procedures and cooperate in implementing the entire research process 3.Selective first hip or knee replacement surgery 4.Gender is not limited 5.Age>75 years old or BMI > 35 Kg/m^2 6.ASA I-III levels 7.The patient has preoperative CT imaging results corresponding to the lumbar spine
Exclusion criteria
Exclusion criteria: 1.Abnormal coagulation function 2.Individuals with impaired mental health 3.Patients who are pregnant or breastfeeding 4.diabetes peripheral neuropathy 5.Participated in other clinical trials within the past three months 6.Refusal to participate 7.Equipped with specific devices (such as pacemakers) 8.History of stroke 9.Infection at the puncture site 10.Allergies to local anesthetics or coupling agents 11.Patients receiving chronic analgesic treatment with opioid drugs
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Success rate of block; | — |
Secondary
| Measure | Time frame |
|---|---|
| Time consumption of block;The puncture frequency and depth of needle puncture;Minimal stimulation current;Analgesic dosage;Pain score;The time of the first request for emergency medication for pain relief;Complication;Satisfaction; | — |
Countries
China
Contacts
Public ContactZhongyuan Xia
Renmin Hospital of Wuhan University
Outcome results
None listed