Fig. (2) Intraoperative stem anteversion assessment using the G-guide.a) Overview photograph showing the intraoperative set-up of the G-guide. The G-guide measurement of the stem AV is made at the time of the final rasp insertion.b) One part of the G-guide is attached to the lower leg along its longitudinal axis to ascertain verticality of the lower leg axis.c) The other part attached to the rasp handle provides information regarding the orientation of the rasp corresponding to the stem AV.