Modified radical neck dissection in cancer of the mouth, pharynx, and larynx

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Abstract
A retrospective analysis of 390 determinate radical neck dissections (RND) performed for cancers of the mouth, pharynx, and larynx was carried out. There were 75 patients (19%) who had a modified RND. These were separately analyzed and the outcome was compared to those who had a standard total RND. Our goal was to assess the effectiveness of modified RND in controlling disease in the neck, and to identify its impact on survival and quality of life. Overall neck recurrence rate in the entire modified RND group was 28%, 35% in the partial RND, and 25% in the comprehensive modified RND. Neck recurrence rate was no worse in the comprehensive modified RND for NO and N1 cases, but increased significantly (as compared to the group of patients with standard RND) in the N2 and N3 cases (52% vs. 33%) Treatment of neck recurrences following modified RND was primarily by surgery, with a 48% 3-year disease-free survival. Overall survival was the same for modified RND (68%) and for standard total RND (63%). This was true for all N stages individually. The morbidity of standard total RND is discussed and the goals of modified RND are analyzed. Definitions and a standardized nomenclature for the various types of modified RND are suggested for uniformity of reporting. From the Department of Surgery, Divison of Head and Neck Surgery, Maimonides Medical Center, Brooklyn, New York.

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