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Functional status in ulnar deficiency.

W F Blair, D G Shurr, J A Buckwalter

    Journal of Pediatric Orthopedics
    |February 1, 1983
    PubMed
    Summary
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    Congenital ulnar deficiency significantly impacts upper extremity function, particularly range of motion and dexterity. However, patients often maintain good bimanual activity despite functional limitations.

    Area of Science:

    • Orthopedics
    • Hand Surgery
    • Pediatric Rehabilitation

    Background:

    • Congenital ulnar deficiency is a condition affecting upper limb development.
    • Evaluating functional outcomes is crucial for patient management.
    • Previous studies have focused on classification, but functional impact requires further investigation.

    Purpose of the Study:

    • To assess the functional capabilities of patients with congenital ulnar deficiency.
    • To identify factors influencing upper extremity function in this population.
    • To correlate radiographic findings with functional outcomes.

    Main Methods:

    • Evaluated 8 patients with untreated congenital ulnar deficiency.
    • Assessed active range of motion, power grip, prehension, and dexterity.

    Related Experiment Videos

  • Utilized patient activity questionnaires and timed functional tests.
  • Compared results to contralateral (opposite) limbs.

    • Main Results:

    • Average active range of motion was 46% of normal.
    • Power grip averaged 27% of the contralateral extremity.
    • Dexterity was reduced, with timed tests averaging 11.6 seconds slower.
    • Poorest function observed with radiohumeral synostosis or digital anomalies.

    Conclusions:

    • Congenital ulnar deficiency leads to significant functional deficits in the upper extremity.
    • Radiographic classification alone does not predict functional outcomes without radiohumeral synostosis.
    • Despite limitations, patients generally maintain bimanual activity.