[Specific Characteristics of Trigger Finger in Children]

Trigger finger in children is a rare condition with relevant differences to the more frequent trigger thumb in children and the very frequent trigger finger in adults.

In a retrospective analysis of children who underwent surgery for trigger fingers in 2 specialised centres, we evaluated 42 children with a total of 63 trigger fingers. Due to persistent triggering after release of the A1 pulley based on intraoperative findings in 12 children with a mean age of 3.7 years ranging from 0.6 to 10.2 years and a total of 17 trigger fingers, additional measures after the release of the A1 pulley were required, mainly the resection of one limb of the sublimis tendon. In one of these children another simultaneously operated finger required the release of the A1 pulley alone. We performed a retrospective chart review of these patients and evaluated the results after a mean follow-up time of 4.8 years ranging from 1.2 to 11.8 years by phone call. Functional impairments, persistent pain, satisfaction and complications were monitored.

All patients treated with A1 pulley release and resection of one limb of the sublimis tendon had excellent results. One patient had a recurrence and another patient developed a contracture of the PIP joint. In both patients, the widening of the tendon sheath had been done by A2 pulley enlargement in addition to the A1 pulley release.

Persistent triggering of a finger following the release of the A1 pulley in a child can be successfully treated by resection of one limb of the sublimis tendon.