Repair of the flexor pollicis longus tendon in children

F Fitoussi1, K Mazda, J M Frajman

  • 1Robert Debré Hospital, Paris, France.

Insights

Primary flexor pollicis longus tendon repairs in children yield good results, though some experience decreased thumb flexion. A new assessment method is proposed for pediatric patients.

Area of Science:

  • Pediatric Orthopedics
  • Hand Surgery
  • Reconstructive Surgery

Background:

  • Flexor pollicis longus (FPL) tendon injuries in children require effective surgical repair.
  • Assessing functional recovery in pediatric patients presents unique challenges.

Purpose of the Study:

  • To evaluate the outcomes of primary FPL tendon repairs in children.
  • To propose a novel assessment method for FPL function recovery in pediatric populations.

Main Methods:

  • Retrospective study of 16 pediatric patients (<15 years) undergoing primary FPL repair within 24 hours.
  • Exclusion criteria included neurovascular injuries, crush injuries, skin loss, or fractures.
  • Modified Kessler technique used for repairs; outcomes assessed using Buck-Gramko and Tubiana criteria.

Main Results:

  • Excellent or good outcomes in 15 of 16 patients, with one secondary tendon rupture.
  • One-third of patients showed a significant decrease (>30 degrees) in active interphalangeal flexion compared to the uninjured thumb.
  • Postoperative immobilization with a short splint negatively impacted outcomes.

Conclusions:

  • Primary FPL repair in children generally yields favorable results.
  • A new, child-specific functional assessment method for FPL tendon recovery is suggested.
  • Short splint immobilization may hinder functional recovery in pediatric FPL repairs.