Fig. 3
From: Nailing vs. plating in comminuted proximal ulna fractures – a biomechanical analysis

Test set-up with mounted sawbone after nail osteosynthesis and 1.2 mm wire cable for simulation of pulling on the triceps tendon. The direction of the pulling apparatus is highlighted with in red color, the motion of the rotating platform is visualized in green color. The measured distances between the optic markers are highlighted blue (line a: anterior measurement) and yellow (line b: posterior measurement)