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Clinical efficacy of ultrasound-guided knee nerve block in the treatment of chronic pain after knee arthroplasty: A single-center randomized controlled study

Clinical efficacy of ultrasound-guided knee nerve block in the treatment of chronic pain after knee arthroplasty: A single-center randomized controlled study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600118930
Enrollment
Unknown
Registered
2026-02-12
Start date
2026-03-01
Completion date
Unknown
Last updated
2026-02-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic pain after knee joint replacement surgery

Interventions

Experimental group:Under ultrasound guidance, perform ACB + PNB
Control group:Under ultrasound guidance, perform ACB + sham operation

Sponsors

Northeast Yunnan Central Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Postoperative pain lasting for >= 3 months after total knee replacement surgery

Exclusion criteria

Exclusion criteria: 1. Patients with postoperative infection of the knee joint, periprosthetic fractures, aseptic loosening of the prosthesis, or bone resorption; 2. Patients with systemic diseases, mental disorders, coagulation dysfunction, or skin infections around the knee joint; 3. Patients who are unwilling to cooperate.

Design outcomes

Primary

MeasureTime frame
Preoperative, immediate postoperative, 1-week postoperative, 2-week postoperative, 4-week postoperative, and 12-week postoperative VAS scores of the affected limb;Knee joint range of motion of the affected limb before the operation, immediately after the operation, 1 week after the operation, 2 weeks after the operation, 4 weeks after the operation, and 12 weeks after the operation;Preoperative, immediate postoperative, 1 week postoperative, 2 weeks postoperative, 4 weeks postoperative, and 12 weeks postoperative 20-meter walking time;The WOMAC scores before the operation, 1 week after the operation, 2 weeks after the operation, 4 weeks after the operation, and 12 weeks after the operation;The Pittsburgh Sleep Quality Index before the operation, 4 weeks after the operation, and 12 weeks after the operation;Complications related to blockage;

Countries

China

Contacts

Public ContactPu Guanghong

Northeast Yunnan Central Hospital

pugh1740@163.com+86 136 0884 1740

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 19, 2026