Clinical trial Recruiting at 2 sites Interventional Ages 18 and up

Longitudinal versus transverse A1 pulley incision for trigger finger

Official title: Incision Decision: A Prospective Randomized Trial Comparing Longitudinal vs. Transverse A1 Pulley Release Outcomes

Run by Washington University School of Medicine · NCT07516652 · Data updated 2026-11-12

This trial will test whether a straight (longitudinal) or a crease-based (transverse) skin incision leads to better hand function, less pain, and improved scarring after open A1 pulley release in adults with trigger finger.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment200 (estimated)
SponsorWashington University School of Medicine
Academic / other
Locations2 sites (Chicago, Illinois and 1 other locations)
StatusRecruiting
StartedApril 1, 2026
Main results expectedApril 1, 2027
Study endsMarch 30, 2028
Registry record updatedApril 8, 2026
Trial IDNCT07516652 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18 or older with primary trigger finger of a finger (not the thumb) who are indicated for open A1 pulley release and can give informed consent are ideal candidates.

Probably not a fit

Patients needing revision or who have had previous surgery on the affected finger, those with trigger thumb, or those unable to undergo surgery or follow-up at the study sites are unlikely to benefit from this trial.

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, multicenter, randomized controlled trial comparing two skin incision techniques for open A1 pulley release in adults with idiopathic trigger finger (excluding the thumb). Participants are randomly assigned to either a longitudinal incision along the finger or a transverse incision in the distal palmar crease, and outcomes are measured using clinical exams and patient-reported metrics. The primary outcome is hand function at six weeks after surgery, with secondary outcomes including pain, scar healing, return to normal activities, and patient satisfaction. Sites include Washington University/Barnes-Jewish Orthopedic Center in St. Louis and The University of Chicago Medicine in Chicago.

Why it matters

Potential benefit: If successful, the preferred incision could improve postoperative hand function, reduce pain and problematic scarring, and speed return to normal activities after trigger finger surgery.

How similar studies have gone: Prior reports are mostly observational or surgeon-preference series with limited randomized data, so a direct randomized comparison of incision type remains relatively untested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult patients (age ≥ 18 years)
* Diagnosed with trigger finger (stenosing tenosynovitis) of a finger (excluding the thumb)
* Written informed consent obtained

Exclusion Criteria:

* Revision surgery
* Previous surgery on the affected finger
* Patients refusing consent

Where it's running

  • The University of Chicago Medicine
    Chicago, Illinois, United States
    Recruiting
  • Washington University and Barnes-Jewish Orthopedic Center
    St Louis, Missouri, United States
    Recruiting

Study contacts

  • Principal investigator: Jason Strelzow, MD — Associate Professor, Orthopaedic Surgery Division of Hand and Microsurgery, Washington University in St Louis
  • Study coordinator: Nisha N Kale, MD
  • Email: kale.n@wustl.edu
  • Phone: 314-906-2072

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.