%0 Journal Article %T Effect of Deltoid Tuberosity Index on the Outcome of Proximal Humeral Fracture Treated with a Locking Plate %J Trauma Monthly %I Official Publication of the National Center for Trauma Research %Z 2251-7464 %A Tavakoli Darestani, Reza %A Manafi, Ali Reza %A Baranzehi, Hamidreza %A Omidian, Mohammad Mahdi %A Barati, Hasan %A Baroutkoub, Mojtaba %A Amouzadeh Omrani, Farzad %A Sayadi, Shahram %A Mirbolook, Ahmadreza %D 2021 %\ 07/01/2021 %V 26 %N 4 %P 222-227 %! Effect of Deltoid Tuberosity Index on the Outcome of Proximal Humeral Fracture Treated with a Locking Plate %K Deltoid Tuberosity Index %K Proximal Humerus Fractures %K constant score %R 10.30491/tm.2021.284963.1292 %X Background: In the elderly, proximal humerus fractures are not unusual. The treatment of these injuries are often complicated.Objectives: This study aimed to evaluate the effect of deltoid tuberosity index on the outcome of proximal humeral fractures treated with a locking plate.Methods: One hundred consecutive patients with displaced fractures of the proximal humerus had open-reduction and internal fixation using a locking plate. The patients were divided into two main groups (low density group) DTI<1.4 and DTI>1.4 (normal density group) and at the end of the study, treatment and failure were assessed in the two groups.Results: In this study, 100 patients with proximal humeral fracture who were candidates for locking plating surgery were evaluated. The mean of DTI in all patients was 1.48 with a minimum of 1.10 and a maximum of 2.20. Based on the Pearson correlation coefficient, with increasing age, the constant score decreased in the studied patients, which was statistically significant (r=-0.216, p-value = 0.031). Also, in patients with DTI less than 1.4 and more than 1.4, the Constant score was 73.02 and 77.88, respectively. This difference was not statistically significant (p-value=0.054). There was a statistically significant relationship between Constant Score, DTI and patients' gender (p-value≤0.05). While there was no statistically significant relationship between fracture type and constant score. Pearson correlation coefficient between DTI and age of patients was -0.30, which decreased with increasing age of patients. This was statistically significant (r=-0.30, p-value=0.003).Conclusion: The results of this study show that the deltoid tuberosity index can be effective on proximal humoral fracture surgery treated with locking plating. %U https://www.traumamon.com/article_132950_e99dcd5b22cf5c492a2c1af3a55ec93c.pdf