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Inner intercanthal and interorbital distances.

H P Freihofer

    Journal of Maxillofacial Surgery
    |November 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    The soft tissue layer near the eye is thicker than previously thought and its thickness correlates with intercanthal distance (ICD). This finding is relevant for understanding facial anatomy and conditions like cleft lip.

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    Area of Science:

    • Anatomy
    • Ophthalmology
    • Plastic Surgery

    Background:

    • The soft tissue thickness between the inner canthus and anterior lacrimal crest is not well-established.
    • Intercanthal distance (ICD) is a key facial measurement with clinical relevance.

    Purpose of the Study:

    • To measure the thickness of the soft tissue layer between the inner canthus and anterior lacrimal crest.
    • To correlate this soft tissue thickness with the intercanthal distance (ICD).
    • To investigate variations in ICD and soft tissue thickness based on sex, age, and cleft lip conditions.

    Main Methods:

    • Measurement of soft tissue thickness using standardized techniques.
    • Correlation analysis between soft tissue thickness and intercanthal distance.
    • Comparison of measurements across different demographic groups (sex, age) and patient cohorts (cleft lip patients).

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    Main Results:

    • The soft tissue layer is thicker than commonly assumed (exceeding 5-7 mm).
    • Soft tissue thickness is significantly related to the width of the intercanthal distance (normal range: 28-35 mm).
    • No significant differences in ICD or soft tissue thickness were found between sexes or age groups.
    • Intercanthal distance is often increased in cleft lip patients, with a frequently thicker soft tissue layer, particularly in bilateral clefts.

    Conclusions:

    • The soft tissue layer's thickness is a significant factor in determining intercanthal distance.
    • Findings provide a more accurate understanding of facial soft tissue anatomy relevant to reconstructive surgery.
    • Increased ICD and soft tissue thickness are characteristic of cleft lip patients, especially those with bilateral clefts.