Chronic pain
Conditions
Interventions
Placebo group:A placebo patch was used for 12 hours daily 1 day before surgery and 1, 2, and 3 days after surgery. The patch position for assuming the incision before surgery. The patch position along
Lidocaine group:A 5% lidocaine patch was used for 12 hours daily 1 day before surgery and 1, 2, and 3 days after surgery. The patch position for assuming the incision before surgery. The patch positio
Sponsors
The First Affiliated Hospital of Soochow University
Eligibility
Sex/Gender
All
Age
60 Years to No maximum
Inclusion criteria
Inclusion criteria: Patients =60 years old undergoing knee arthroplasty ASA I-? grade BMI < 35 Patients undergoing primary unilateral knee arthroplasty Informed consent, patients and their families
Exclusion criteria
Exclusion criteria: Known allergies to lidocaine or adhesive agents History of frequent arrhythmias or serious cardiac disease Coexisting chronic pain conditions Long-term use of opioid drugs History of alcoholism, Severe renal and hepatic insufficiency History of neurological or psychiatric diseases Serious visual, auditory, or the language barrier, unable to complete the evaluator
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| WOMAC Index (Pain Subscale, score range 0-50); | — |
Secondary
| Measure | Time frame |
|---|---|
| LANSS nerve pathological pain scale;Dosage of sufentanil;nausea and vomiting;VAS sleep score;NRS Pain score;Rescue analgesia;PACU duration of stay;Length of postoperative hospital stay;Postoperative 3-month mortality;WOMAC Stiffness Subscale;WOMAC Physical Function Subscale;WOMAC Total Score;Short Form (36) Health Survey; | — |
Countries
China
Contacts
Public ContactXiaohong Jin
The First Affiliated Hospital of Soochow University
Outcome results
None listed