Ultrasound-guided needle knife release

Ultrasound-guided needle knife release for the treatment of stenosing tenosynovitis of the flexor pollicis longus: a prospective randomized controlled trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN11819634

Enrollment

Registered

2024-11-04

Start date

2023-01-01

Completion date

Unknown

Last updated

2024-11-18

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

Conditions

Ultrasound-guided needle knife release in the treatment of stenosing tenosynovitis of the flexor pollicis longus (FPL) Musculoskeletal Diseases

Interventions

60 patients with clinically and ultrasonographically confirmed stenosing tenosynovitis of the FPL were randomly allocated to three groups: ultrasound-guided needle knife release (n = 20), traditional

Canon Medical Systems Corporation, Tochigi, Japan) was used to identify the thickened A1 pulley in the longitudinal and transverse planes. The knife broke the constricting tissue around the tendon she

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Adults aged 18-70 years 2. Clinically and ultrasonographically confirmed stenosing tenosynovitis of the FPL (Quinnell grade =2, A1 pulley thickness >1 mm) 3. Symptoms present for at least 3 months 4. Failure of conservative treatment (NSAIDs, splinting, or corticosteroid injections) for at least 6 weeks

Exclusion criteria

Exclusion criteria: 1. Secondary trigger thumb due to underlying conditions (e.g., diabetes mellitus, rheumatoid arthritis, gout) 2. Previous surgical intervention for trigger thumb 3. Concomitant hand disorders (e.g., carpal tunnel syndrome, de Quervain's tenosynovitis) 4. Severe cardiovascular, pulmonary, or neurological comorbidities 5. Inability to comply with the study protocol or follow-up schedule

Design outcomes

Primary

Measure	Time frame
Severity of triggering assessed using the Quinnell grading system at time at baseline, 1 week, 1 month, and 3 months after the intervention	—

Secondary

Measure	Time frame
Evaluated at baseline, 1 week, 1 month, and 3 months post-intervention: 1. Pain intensity assessed using a Visual Analog Scale (VAS) ranging from 0 (no pain) to 10 (worst imaginable pain) 2. Patient satisfaction assessed using a 5-point Likert scale (1, very dissatisfied; 2, dissatisfied; 3, neutral; 4, satisfied; 5, very satisfied) 3. Grip strength measured using a Jamar dynamometer (Patterson Medical, Warrenville, IL, USA) 4. Pinch strength measured using a pinch gauge (B&L Engineering, Santa Ana, CA, USA) 5. Disabilities of the Arm, Shoulder and Hand (DASH) score 6. Complications, such as infection, nerve injury, and tendon rupture measured by two blinded hand therapists who were not involved in the treatment process	—

Measure

Time frame

Evaluated at baseline, 1 week, 1 month, and 3 months post-intervention: 1. Pain intensity assessed using a Visual Analog Scale (VAS) ranging from 0 (no pain) to 10 (worst imaginable pain) 2. Patient satisfaction assessed using a 5-point Likert scale (1, very dissatisfied; 2, dissatisfied; 3, neutral; 4, satisfied; 5, very satisfied) 3. Grip strength measured using a Jamar dynamometer (Patterson Medical, Warrenville, IL, USA) 4. Pinch strength measured using a pinch gauge (B&L Engineering, Santa Ana, CA, USA) 5. Disabilities of the Arm, Shoulder and Hand (DASH) score 6. Complications, such as infection, nerve injury, and tendon rupture measured by two blinded hand therapists who were not involved in the treatment process

—

Countries

China

Contacts

Public ContactWenyan Xue

xue_wenyan@163.com+86 (0)358 8245001

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026