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Postoperative scars and cleavage lines.

K Motegi, Y Azumi, T Ueno

    The Bulletin of Tokyo Medical and Dental University
    |June 1, 1977
    PubMed
    Summary
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    Understanding neck skin cleavage lines is crucial for surgical incisions. Incisions parallel to these lines result in fewer raised scars compared to perpendicular ones, especially after radiotherapy.

    Area of Science:

    • Anatomy
    • Surgical Oncology
    • Dermatology

    Background:

    • Skin cleavage lines influence scar formation.
    • Radical neck dissection is a common procedure for oral cancer metastasis.

    Purpose of the Study:

    • To determine the pattern of neck skin cleavage lines in Japanese cadavers.
    • To evaluate the impact of incision orientation relative to cleavage lines on scar outcomes in radical neck dissection.
    • To assess the effect of preoperative radiotherapy on postoperative scarring.

    Main Methods:

    • Anatomical study of neck skin cleavage lines in Japanese cadavers.
    • Retrospective analysis of 42 radical neck dissection cases.
    • Comparison of scar appearance based on incision placement (parallel vs. perpendicular to cleavage lines) and radiotherapy history.

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    Main Results:

    • Neck skin cleavage lines generally run horizontally and in a ring-like fashion, with exceptions at the posterior and lower neck base.
    • Incisions made parallel to cleavage lines yielded fewer raised and widened scars than perpendicular incisions.
    • No raised postoperative scars were observed in patients who received preoperative radiotherapy.

    Conclusions:

    • Surgical incisions aligned with neck skin cleavage lines can minimize unfavorable scarring.
    • The orientation of surgical incisions is a significant factor in scar quality after radical neck dissection.
    • Preoperative radiotherapy may play a role in preventing hypertrophic scarring post-neck dissection.