Comparison of the Effects of 2 Surgical Techniques Used in the Treatment of Concha Bullosa on Olfactory Functions

Abstract

Introduction: Concha bullosa (CB), which is pneumatization of the concha, is one of the most commonly seen anatomic variations of the lateral nasal wall. Objective: To investigate the effects on olfactory function of lateral turbinectomy and crushing methods used in the surgical treatment of CB. Methods: The study included a total of 47 patients operated on for a diagnosis of CB and nasal septum deviation. The patients comprised 22 females and 25 males, with bilateral CB in 18 cases and unilateral in 29 cases. Intervention was made to a total of 65 CB. The cases were separated as those applied with septoplasty and lateral turbinectomy in group 1 (n = 34) and those applied with the septoplasty and crushing method in group 2 (n = 31). The olfactory function of the patients was evaluated preoperatively and at 3 months postoperatively with the Brief Smell Identification Test. Results: A statistically significant increase was determined in the postoperative smell test results compared with the preoperative values in both group 1 (P= .021) and group 2 (P= .001). When the change in the smell test results from preoperative to postoperative was compared between the groups, the increase in group 2 was determined to be statistically significantly greater (P= .002). Conclusion: The results of this study showed that the crushing method in surgical treatment of CB increased olfactory functions more than the lateral resection method, and as the improvement in olfactory functions was greater, this demonstrated that only increasing the nasal cavity is not sufficient and the nasal mucosa should be protected as far as possible.