Abstract
Mandibular swing is the approach of choice for resection of advanced oropharyngeal carcinomas without bone involvement. This approach requires a mandibulotomy, which is associated with complications. A prospective outcome analysis was performed for 21 patients operated without mandibulotomy for T3-T4a oropharyngeal carcinoma. Tumour size was categorized as T3 in 14 patients (66.7 %) and as T4a (33.3 %) in 7 patients. Twelve patients were N0 (57.1 %), 2 (9.5 %) were N1, and 7 (33.3 %) were N2. Surgical margins were negative in 18 cases (85.7 %), positive in 1 (4.8 %), and close in 2 (9.5 %). Average hospital stay was 14.5 days (range 10-22). Adjuvant treatment (radiotherapy or concurrent chemoradiotherapy) was administered to all but three patients previously irradiated. In all cases radiotherapy started within 42 days of surgery. The 3-year overall survival was 85.7 %, and relapse-free survival was 71.4 %. Oropharyngectomy without mandibulotomy has the same indications as mandibular swing. It provides good access to achieve satisfactory clearance of tumours, sparing patients the morbidity associated with mandibulotomy.
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