Knee Disorders
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Patients aged 60-75 years, ASA class I-III, with a body mass index (BMI) of 18-29.5 kg/m², and who have signed an informed consent form.
Exclusion criteria
Exclusion criteria: 1. Long-term use of analgesics for chronic pain conditions; 2. History of allergy to amide local anesthetics; 3. Preoperative contraindications for nerve block; 4. Patients with severe mental or psychological disorders who cannot cooperate with treatment or those with language impairment; 5. Patients with central nervous system diseases; 6. History of acute or severe bronchial asthma.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| NRS pain score (rest/activity); | — |
Secondary
| Measure | Time frame |
|---|---|
| Knee joint range of motion;quadriceps muscle strength;Pain pump data (presses, total volume);Palliative analgesia (duration, dosage);untoward effect ;Postoperative hospitalization duration; | — |
Countries
China
Contacts
The Eighth Affiliated Hospital, SunYat-Sen University