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Upper limb standards in newborns.

Y Sivan, P Merlob, S H Reisner

    American Journal of Diseases of Children (1960)
    |September 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    This study establishes normal newborn upper limb measurements for infants aged 27-41 weeks. These standards help clinicians identify abnormal newborn upper limb development.

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    Area of Science:

    • Neonatal Medicine
    • Pediatric Orthopedics
    • Clinical Measurement Science

    Background:

    • Accurate assessment of newborn physical development is crucial for early detection of abnormalities.
    • Establishing normative data for neonatal anthropometry aids in clinical diagnosis.
    • Variations in upper limb growth can indicate underlying developmental or genetic conditions.

    Purpose of the Study:

    • To define reference standards for upper limb measurements in newborns.
    • To provide clinicians with tools for identifying abnormal upper limb development in neonates.
    • To establish normative values for arm, forearm, and hand lengths based on gestational age.

    Main Methods:

    • Measurement of upper limb anthropometrics in 198 term and preterm infants (27-41 weeks gestational age).

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  • Gestational age determination using both chronological and clinical methods.
  • Standardized measurement techniques employed by two independent observers.
  • Statistical analysis to determine mean +/- 2 standard deviations for each gestational week.

    • Main Results:

    • Normative data for total arm length, upper extremity length, forearm length, total hand length, and middle finger length were established.
    • Measurements were correlated with gestational age to create reference ranges.
    • The study provides a dataset for comparing individual infant measurements against expected values.

    Conclusions:

    • The established standards facilitate the clinical assessment of newborn upper limb size.
    • This data assists in the early identification of potential congenital anomalies or growth disturbances.
    • The study contributes essential normative data for neonatal clinical practice and research.