Mathematical model of distal radius orientation

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

Automated summary

The orientation of the distal radius is crucial in evaluating Colles' fracture. This study presents a mathematical model to calculate the pronation angle required to achieve dorsal tilt, which represents volar tilt in a perfect lateral view radiograph.