Fig. 6From: Force measurement metrics for simulated elbow arthroscopy trainingSafe force zone (magnitude and direction) for all compartments. The red dots indicate the median value of Fabs, α and β for each compartment. The thick black lines with white dots at their respective ends represent the 10th and 90th percentile value of Fabs in the median force direction. The grey boxes surrounding the thick black lines indicate the combined boundaries of the 10th -90th percentiles for Fabs, α and β. The origin is taken at the same position for each compartment. a 3D graphical representation. For reference an elbow in the lateral decubitus position is added. So the forces are directed towards the surgeon, b Top view, c Sagittal viewBack to article page