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Updated: Apr 15, 2026

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Long term functional outcomes after early childhood pollicization.

Nina Lightdale-Miric1, Nicole M Mueske2, Emily L Lawrence3

  • 1Children's Orthopaedic Center, Children's Hospital Los Angeles, Los Angeles, CA, USA; Orthopaedic Surgery Department, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.

Journal of Hand Therapy : Official Journal of the American Society of Hand Therapists
|April 4, 2015
PubMed
Summary

Pollicization surgery for thumb hypoplasia can lead to weakness but often achieves adequate dexterity. Poorer outcomes are linked to older age at surgery and radial absence.

Keywords:
DexterityFunctional outcomePollicizationSurgical outcomeThumb

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Area of Science:

  • Pediatric Orthopedics
  • Hand Surgery
  • Congenital Hand Differences

Background:

  • Pollicization is a surgical procedure to treat thumb hypoplasia/aplasia.
  • Key outcomes include hand strength, function, dexterity, and quality of life.

Purpose of the Study:

  • Evaluate outcomes of pollicization in early childhood.
  • Identify predictors of surgical success.

Main Methods:

  • Retrospective cohort study of 8 children (10 hands) 3-15 years post-surgery.
  • Assessments included physical exams, questionnaires, grip/pinch strength, and dexterity tests (Box and Blocks, 9-hole pegboard, S-D tests).

Main Results:

  • Pollicized hands demonstrated poor strength and functional test performance.
  • Six of 10 hands had normal dexterity but reduced force stability.
  • Older age at surgery, limited joint motion, and radial absence predicted poorer outcomes.

Conclusions:

  • Pollicization yields reduced strength and function but often normal dexterity via compensatory strategies.
  • Most children achieve adequate dexterity despite weakness, except those operated on at an older age or with severe involvement.