Comparative study between supraomohyoid neck dissection and radical neck dissection for squamous cell carcinoma cavity

ABSTRACT

Supraomohyoid neck dissection [SOHND] has been identified as an appropriate staging procedure to provide valuable pathologic information of the neck for patients with oral squamous cell carcinoma. However the role of SOHND as therapeutic procedure compared with the oncologic results of radical neck dissection, remains controversial for lack of adequate data in current literature. This prospective study has been completed on 50 patients with squamous cell carcinoma of oral cavity 35 male and 15 female. 25 patients who underwent SOHND with the mean age of patient 56 years ranged from 21-77 years and 25 patients who underwent RND with the mean age of patient 54 year ranged from 19-78 years. Tumor location was tongue 27 cases, floor of mouth 17 cases, gingiva 2 cases, buccal mucosa 2 cases and retromolar 2 cases. The occult metastatic rate was found to increase according to T-stage of primary tumour and had significant difference. Patients with oral squamous cell carcinoma who underwent elective SOHND and radical neck dissection [RND] between January 2002 and February 2007 Surgical Oncology Unit, Al Azhar University, were retrospectively reviewed the 2 types of treatment were analyzed for incidence of neck recurrence and survival probabilities. No significant difference were found between patients treated with SOHND versus RND. Occult metastasis rate, regional disease free survival, overall and disease free survival, and distant metastasis-free survival rates were found to be comparable. Supraomohyoid neck dissection compares favorably with RND for the staging and treatment of patients with oral squamous cell carcinoma