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The false cortical thumb.

R R Skoglund, E E Giles

    American Journal of Diseases of Children (1960)
    |April 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Repeated radial artery puncture can lead to thumb-in-palm deformity due to damage to thumb extensor tendons. This condition requires differentiation from other causes of thumb deformities.

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    Area of Science:

    • Orthopedics
    • Vascular Surgery
    • Hand Surgery

    Background:

    • Radial artery puncture is a common procedure for vascular access.
    • Potential complications of radial artery puncture are well-documented.
    • Thumb-in-palm deformity is a disabling condition affecting hand function.

    Observation:

    • Two cases of thumb-in-palm deformity were observed following repeated radial artery puncture and cannulation.
    • The deformity was associated with damage to the thumb extensor tendon sheath, specifically the extensor pollicis brevis and abductor pollicis longus tendons.

    Findings:

    • The presented thumb-in-palm deformity is postulated to be a complication of radial artery procedures.
    • This condition must be distinguished from "cortical thumbs" seen in upper motor neuron injuries and other etiologies.

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  • Impaired extensor tendon function is an identified risk associated with radial artery puncture.

    • Implications:

    • Clinicians should be aware of the potential for iatrogenic thumb extensor tendon injury following radial artery puncture.
    • Early recognition and differentiation from other thumb deformities are crucial for appropriate management.
    • This highlights an under-recognized complication of a frequently performed vascular access procedure.