AUTHOR=Chen Cheng-Kuang , Wu Tai-Yin , Liao Yu-Ciao , Fuh Chiou-Shann , Chen Kuan-Hao , Weng Pei-Wei , Wang Jr-Yi , Chen Chih-Yu , Huang Yu-Min , Chen Chung-Pei , Chu Yo-Lun , Yeh Kuei-Lin , Yu Ching-Hsiao , Wu Hung-Kang , Lin Wei-Peng , Liou Tsan-Hon , Wu Mai-Szu , Liaw Chen-Kun 

TITLE=Mathematical model of distal radius orientation

JOURNAL=Frontiers in Surgery

VOLUME=Volume 9 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2022.1000404

DOI=10.3389/fsurg.2022.1000404

ISSN=2296-875X

ABSTRACT=Distal radius orientation is important in evaluating Colles’ fracture. In most cases, the wrist was protected by bandage, splint, or cast. Therefore, it was difficult for the radiology technician to take perfect antero-posterior (AP) and lateral (LAT) view radiographs. 
In this study, we build a mathematical model and calculate the pronation angle needed to produce dorsal tilt, which is volar tilt in perfect lateral view radiograph. The formulas are all incorporated into Excel to facilitate usage.