ObjectiveTo observe the effect of the box-lid type approach of mandibular rumas in the operation for parapharyngeal space tumors. Methods55 cases of patients with pharyngeal space tumors were divided into observation group (28 cases) and control group (27 cases). The observation group was treated with the box-lid type approach of mandibular rumas while the control group was treated with the ateral approach to cervical spine. The two groups were followed up for 2 years. The curative effect and the incidence rate of complications were compared between the two groups. ResultsThere were no significant differences in 1 and 2-year survival rates between the two groups of patients with malignant tumors; The recurrence rate of the benign patients in the observation group (3.6%) was lower than that of the control group (22.2%) (P＜0.05). The incidence rate of complications in the observation group (33.3%)(3/28) was lower than that of the control group 33.3%(10/27) (P＜0.05). ConclusionThe box-lid type approach of mandibular rumas during the operations for parapharyngeal space tumors can fully exposed the surgery field. It is conductive to tumor resection, with low recurrence rate, little injury and few postoperative complications. It is worth promotion.

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