ObjectiveTo explore the relationship between vertical length of middle turbinate (MT) and chronic sinusitis to provide reference evidence and theoretical basis for MT management.MethodsClinical data of 106 patients (212 sides) with chronic sinusitis and 50 healthy volunteers (100 sides) were analyzed retrospectively via combining the results of CT scan and nasal endoscopy. The LundMackey scores of the patients with chronic sinusitis were obtained. The comparison of the length of MT in both groups was performed with ttest, and the relationship between the length of MT and the LundMackey scores in the chronic sinusitis group was evaluated with Pearson correlation analysis.ResultsAccording to CT scan, the average length of MT was 23.9198±3.4611 mm in chronic sinusitis group, while that was 21.3600±2.9900 mm in healthy volunteers group; The the difference was statistically significant (t=6.348,P<0.01). The average LundMackey score in the chronic sinusitis group was 5.9198±2.5603. Pearson analysis showed that the vertical length of MT was positively correlated with the LundMackey score in the chronic sinusitis group (r=0.253,P=0.000).ConclusionsThe vertical length of MT is positively correlated with the development of chronic sinusitis. The overlength MT may play an important role in the pathogenesis of chronic sinusitis. The MT should be managed properly according to its physical length during operation.