Ultrasound-Guided Saline Injections to Prevent Tendon Scar After Finger Tendon Repair
Official title: A Prospective Randomized Controlled Trial of Ultrasound-Guided Repeated Normal Saline Injections for Preventing and Treating Tendon Adhesion
Run by Shanghai 6th People's Hospital · NCT07861568 · Data updated 2026-11-12
In adults with zone II flexor tendon injuries in the fingers, researchers will test whether adding ultrasound-guided saline injections after surgery helps prevent or reduce scar tissue and improve movement.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 60 Years |
| Sex | All |
| Enrollment | 80 (estimated) |
| Sponsor | Shanghai 6th People's Hospital Academic / other |
| Drugs / interventions | chemotherapy |
| Locations | 1 site (Shanghai, Shanghai Municipality) |
| Status | Recruiting |
| Started | October 1, 2026 |
| Main results expected | September 30, 2027 |
| Study ends | September 30, 2027 |
| Registry record updated | October 20, 2026 |
| Trial ID | NCT07861568 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults 18–60 years with a Zone II flexor tendon rupture scheduled for repair.
✕Probably not a fit
Patients who do not respond to rehabilitation alone or who have conditions affecting healing may see no added benefit from injections.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a prospective, single-center randomized trial enrolling 80 adults aged 18–60 undergoing zone II flexor tendon repair. Participants are assigned 1:1 to receive standard postoperative rehabilitation with or without ultrasound-guided injections of 1 mL normal saline at the adhesion site on days 7, 14, and 21. Dynamic ultrasound will track saline distribution, and follow-up visits occur at 6 weeks and 3 months to measure total active motion in the repaired digits. The primary outcome is TAM at 3 months, analyzed as a continuous measure. Safety monitoring will assess adverse events related to injections.
Why it matters
Potential benefit: If successful, the saline injections could help reduce tendon adhesions and improve finger movement after repair.
How similar studies have gone: Previous studies in other tendon repairs suggest that localized injections can influence scar formation, but this approach is exploratory for Zone II flexor tendons.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Age 18 to 60 years. 2. Zone II flexor tendon rupture in the index, middle, ring, or little finger. 3. Scheduled to undergo tendon repair surgery. Exclusion Criteria: 1. Concomitant irreparable vascular and/or nerve injury. 2. History of diabetes mellitus. 3. History of treatment with nonsteroidal anti-inflammatory drugs. 4. History of cardiac insufficiency. 5. History of hematologic disease. 6. History of hepatic or renal dysfunction. 7. History of rheumatic or autoimmune disease. 8. History of chemotherapy or radiotherapy. 9. History of steroid treatment. 10. Pregnancy. 11. Concurrent participation in another clinical trial.
Where it's running
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Shanghai sixth people's hospital
Shanghai, Shanghai Municipality, China Recruiting
Study contacts
- Study coordinator: Kai Wang, MD
- Email: 2019wk@sjtu.edu.cn
- Phone: 86+19821288715
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Virtual reality rehab with early active mobilization after flexor tendon repair
This study tests whether adding virtual reality–based rehabilitation to an early active mobilization plan helps people recover finger movement, strength, and less pain after flexor tendon repair.
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Wrist position in a 3D-printed dorsal blocking splint after flexor tendon repair
This trial tests whether three wrist angles (30° extension, neutral, or 30° flexion) in a 3D-printed dorsal blocking orthosis affect recovery after zone I–II flexor tendon repair in adults.
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Rehabilitation comparison after thumb flexor tendon repair
This tests whether starting early active motion or keeping the thumb in a plaster cast for four weeks works better after surgery for a torn thumb flexor tendon in people older than 15.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.