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Related Experiment Videos

The posterior triangle in radical neck surgery.

E M Skolnik, K F Yee, M Friedman

    Archives of Otolaryngology (Chicago, Ill. : 1960)
    |January 1, 1976
    PubMed
    Summary
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    This study found no cancer metastasis in the posterior triangle of the neck in patients undergoing radical neck surgery. Preserving this area may improve outcomes and allow for spinal accessory nerve preservation.

    Area of Science:

    • Surgical Oncology
    • Head and Neck Cancer Research
    • Anatomical Pathology

    Background:

    • Cancer spread to the lymphatic system is a critical factor in head and neck cancer prognosis.
    • The posterior triangle of the neck is a common site for lymphatic drainage, but its role in metastasis requires further clarification.
    • Radical neck dissection aims to remove cancerous lymph nodes, but preserving uninvolved anatomical structures is crucial for patient function.

    Purpose of the Study:

    • To investigate the incidence and significance of metastatic involvement in the posterior triangle of the neck.
    • To determine if the posterior triangle can be safely preserved during radical neck surgery for specific head and neck cancers.
    • To correlate posterior triangle metastasis with primary tumor site and anterior triangle involvement.

    Main Methods:

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    • Serial sectioning and histopathological examination of 51 radical neck specimens.
    • Analysis of metastatic involvement in both anterior and posterior triangles of the neck.
    • Correlation of findings with primary tumor location (larynx, pharynx, oral cavity) and surgical group (elective vs. therapeutic).

    Main Results:

    • No instances of metastasis were detected in the posterior triangle across all 51 specimens, irrespective of primary tumor site.
    • Metastatic involvement was significant in the anterior triangles, with 88.4% in the therapeutic group and 24.0% in the elective group.
    • These findings were consistent in both therapeutic (post-operative) and elective (prophylactic) neck dissections.

    Conclusions:

    • The posterior triangle of the neck appears to be a low-risk area for metastasis in cancers of the larynx, pharynx, and oral cavity.
    • Complete preservation of the posterior triangle during radical neck surgery is a viable option.
    • Preserving the posterior triangle may facilitate the routine preservation of the spinal accessory nerve, improving patient quality of life.