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Evaluation of Muscle Function of the Extensor Digitorum Longus Muscle Ex vivo and Tibialis Anterior Muscle In situ in Mice
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[Histological features of interdigital muscles in lengthening of underdeveloped fingers in children]

A P Tiazhelkov, E N Iaroshevskaia

    Ortopediia Travmatologiia I Protezirovanie
    |October 1, 1991
    PubMed

    Insights

    Congenital underdevelopment of fingers causes hand muscle hypoplasia. Distraction therapy promotes significant muscle regeneration and structural restoration in children, highlighting the regenerative potential of these muscles.

    Area of Science:

    • Hand surgery
    • Pediatric orthopedics
    • Muscle histology

    Background:

    • Congenital underdevelopment of fingers often leads to associated hand muscle hypoplasia.
    • Understanding the regenerative capacity of these muscles is crucial for effective treatment.

    Purpose of the Study:

    • To histologically examine vermicular and interosseal muscles in children with congenital finger underdevelopment.
    • To evaluate the regenerative changes in these muscles following distraction lengthening procedures.

    Main Methods:

    • Histologic examination of hand muscles (vermicular and interosseal) from 45 children (aged 4-14 years).
    • Examination conducted before and after distraction lengthening of congenitally underdeveloped fingers.

    Main Results:

    • Congenital finger underdevelopment is associated with hypoplasia of the hand muscles.
    • Distraction therapy induced significant regenerative changes in the muscle structure.
    • The muscles demonstrated a high capacity for regeneration and structural restoration post-distraction.

    Conclusions:

    • Hand muscles in congenital finger underdevelopment exhibit hypoplasia but possess substantial regenerative potential.
    • Distraction lengthening is an effective method for restoring muscle structure and function in these cases.

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