Femoral neck fracture
Conditions
Interventions
Group A:Subarachnoid injection of 0.33% ropivacaine 10mg
Group B:Subarachnoid injection of 0.4% ropivacaine 10mg
Group C:Subarachnoid injection of 0.5% ropivacaine 10mg
Sponsors
The Second Hospital of Jilin University
Eligibility
Sex/Gender
All
Age
65 Years to 94 Years
Inclusion criteria
Inclusion criteria: 1) Age = 65 years; 2) physical condition and surgical risk before anesthesia ranged between grades I and III according to the American Association of Anesthesiologists (ASA) classification; 3) BMI, 20-27kg/m2; 4) all patients were examined at admission to confirm tolerance to the trial; 5) not used sedatives, opioids and other analgesics recently; and 6) signed the informed consent form;7) the patients met the diagnostic criteria of “osteonecrosis of femoral head, femoral neck fracture, ankylosing spondylitis in the "Orthopaedic Pathology Diagnostic Specifications";
Exclusion criteria
Exclusion criteria: 1) Unable to cooperate with intraspinal anesthesia and suffer from mental illness; 2) history of spinal surgery, back infection, coagulation dysfunction, or receiving anticoagulant therapy; 3) allergy to local anesthesia drugs, and 4) failed intraspinal anesthesia ; 5)the patient had a medical history or other experimental history in the 3 months prior to the study; 6 ) the patient's tolerance to the experiment is low, and there are subjective factors that can not accept the follow-up investigation or follow-up.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Time of hospitalization;Time to get out of bed from the end of surgery;Duration of motor block; | — |
Secondary
| Measure | Time frame |
|---|---|
| effect of anesthesia; | — |
Countries
China
Contacts
Public ContactTian Dan
The Second Hospital of Jilin University
Outcome results
None listed