Figure 6.

The scaphoid rotation axis was determined for all wrists and transformed to one single reference scaphoid (yellow) with its corresponding lunate (green), here shown as a three-dimensional rendering (top row) from an ulnodorsal view of the wrist. The mean flexion rotation axis (red line) and mean extension rotation axis (blue line) and their 95% confidence ellipses are presented. The bottom row shows this configuration and the 95% confidence ellipses in radial, ulnar and distoproximal views.