Objective: To describe a new method to identify and quantify the rotational displacement on a supracondylar fracture of humerus. Methods: The study was conducted using synthetic models of the humerus, sawing it perpendicular to its long axis, in the olecranon fossa level, fixing with different rotational deviations,and then a radiograph of the construct was obtained. We performed a descriptive analysis of the sensitivity and specificity of the method of viewing the “metaphyseal spurs” with the nonparametric Kruskal- Wallis test. The linear regression analysis was used to identify a relationship between size of the spur and the degree of rotation deviation of the fracture. Results: The sensitivity and specificity was 100% from the 15 degrees of rotational deviation and there was a statistically relationship between the size of the spur and the degree of rotational deviation. Conclusion: The method proved to be easy to use, reliable and reproducible in this work.
Humeral Fractures; Elbow; Child
