Brazilian journal of otorhinolaryngology · 2007
Marginal mandibulectomy in the surgical treatment of tonsil and retromolar trigone tumours.
Сравнительное исследованиеСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Pascoal Maria Beatriz Nogueira, Chagas José Francisco, Alonso Nivaldo, Aquino José Luiz, Ferreira Marcus Castro, Pascoal Maria Isabel Nogueira, Magna Luiz A
Аннотация
UNLABELLED: Resection of the ascending ramus of the mandible can result in considerable functional and esthetic damage.
AIM: To compare the survival rate and local and regional recurrence in marginal and segmental mandibulectomy for advanced tonsil and retromolar trigone tumours with no mandibular invasion. PLACE AND PERIOD: Reference Head & Neck Service, between October 1994 and December 2001.
MATERIAL AND METHOD: 20 stage IV patients undergoing marginal mandibulectomy and 22 undergoing segmental mandibulectomy were compared.
CASE STUDY: a contemporary cross-sectional cohort study.
RESULTS: Of 20 patients undergoing marginal mandibulectomy, 35% died of the disease, 15% due to local recurrence, 15% due to regional recurrence and 5% due to local and regional recurrence. Of 22 patients undergoing segmentary mandibulectomy, 36,4% died of the disease, 31,8% due to local recurrence and 13,6% due to distant recurrence. The Kaplan-Meier analysis showed a 55% survival rate for the marginal mandibulectomy group, and a 45% survival rate for the segmental group (p= 0.8329).
CONCLUSIONS: Analysis of the two groups showed that conservation of the ascending ramus of the mandible, even in advanced lesions with no mandibular involvement, does not increase the recurrence rate.
AIM: To compare the survival rate and local and regional recurrence in marginal and segmental mandibulectomy for advanced tonsil and retromolar trigone tumours with no mandibular invasion. PLACE AND PERIOD: Reference Head & Neck Service, between October 1994 and December 2001.
MATERIAL AND METHOD: 20 stage IV patients undergoing marginal mandibulectomy and 22 undergoing segmental mandibulectomy were compared.
CASE STUDY: a contemporary cross-sectional cohort study.
RESULTS: Of 20 patients undergoing marginal mandibulectomy, 35% died of the disease, 15% due to local recurrence, 15% due to regional recurrence and 5% due to local and regional recurrence. Of 22 patients undergoing segmentary mandibulectomy, 36,4% died of the disease, 31,8% due to local recurrence and 13,6% due to distant recurrence. The Kaplan-Meier analysis showed a 55% survival rate for the marginal mandibulectomy group, and a 45% survival rate for the segmental group (p= 0.8329).
CONCLUSIONS: Analysis of the two groups showed that conservation of the ascending ramus of the mandible, even in advanced lesions with no mandibular involvement, does not increase the recurrence rate.