Paragraph Number

145

The electronic circuit 300/400 may measure an orientation of the shaft in relation to the reference axis with the shaft in the desired orientation. The electronic circuit 300/400 may also determine an orientation angle of the shaft relative to the reference axis with the shaft in the desired location. The electronic circuit 300/400 may communicate the orientation angle to a user/surgeon. For example, the electronic circuit 300/400 may display the determined orientation angle using the display 262. The user/surgeon may confirm that the orientation angle satisfies a target insertion trajectory previously determined by a surgeon conducting the spinal surgery procedure. Then, a surgeon may proceed with one or more steps of the spinal surgery procedure.

Added by DJM 1 2022