Comparative Clinical Outcomes of Transverse, Oblique, and Longitudinal Approaches in A1 Pulley Release for Trigger Finger: A Randomized Controlled Trial

Status

Recruiting

Phases

Phase 2

Study type

Interventional

Source

TCTR

Registry ID

TCTR20260322001

Enrollment

261

Registered

2026-03-22

Start date

2026-03-13

Completion date

Unknown

Last updated

2026-04-27

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

Conditions

Transverse, oblique, and longitudinal incision approaches in open A1 pulley release for trigger finger. A1 pulley release, trigger finger, incision type, range of motion, DASH, VAS, scar area

Interventions

Participants allocated to the transverse incision group will undergo open A1 pulley release using a transverse skin incision placed along the distal palmar crease over the affected metacarpophalangeal

Experimental Procedure/Surgery,Experimental Procedure/Surgery,Experimental Procedure/Surgery

Transverse approach,Oblique approach,Longitudinal approach

Eligibility

Sex/Gender

All

Age

40 Years to 60 Years

Inclusion criteria

Inclusion criteria: 1. Patients diagnosed with trigger finger in either the right or left hand. 2. Patients diagnosed with trigger finger classified as Quinnell Classification grade 2 to 4. 3. Patients aged between 40 and 60 years. 4. Patients whose symptoms did not improve after at least 3 months of non-surgical treatment, such as oral analgesics or corticosteroid injection into the flexor tendon sheath. 5. Patients who provided informed consent and agreed to participate in the study.

Exclusion criteria

Exclusion criteria: 1. Patients diagnosed with trigger finger of the thumb. 2. Patients diagnosed with trigger finger involving more than one finger in the same hand. 3. Patients with a history of hand injuries, such as finger fractures or tendon lacerations. 4. Patients with a history of severe head injuries due to trauma or medical conditions, such as stroke. 5. Patients who declined to participate in the study.

Design outcomes

Primary

Measure	Time frame
Range of motion of the metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joints, including extension, flexion, and overall joint mobility At 2, 4, 8, and 12 weeks postoperatively Degrees	—

Secondary

Measure	Time frame
Hand (DASH) scores, the Visual Analog Scale (VAS) score, the volume of scar tissue, the operative times At 2, 4, 8, and 12 weeks postoperatively Points, mm3, seconds	—

Countries

Thailand

Contacts

Public ContactVeeranon Chunyawongsak

Rajavithi hospital

veeranon11@gmail.com022062900

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: May 1, 2026