Necrosis of femoral head
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Sixty elderly patients aged from 50 to 80 years old, with body weight of 45 to 70 kg, were randomly divided into two groups (n=30) by using random number table method.
Exclusion criteria
Exclusion criteria: A psychopath; Local skin infection at puncture site; Peripheral neuropathy; Coagulation dysfunction; Opioid abuse; Chronic pain; Unable to match the visual analog scale (VAS); Patients with hypertension that cannot be controlled by drugs; Other patients who could not tolerate the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Quadriceps strength;Hip range of motion;Tramadol accumulative dosage; | — |
Secondary
| Measure | Time frame |
|---|---|
| Visual Analog Pain Score; | — |
Countries
China
Contacts
Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University