Fig. 2From: Need for concomitant Akin osteotomy in patients undergoing Chevron osteotomy can be determined preoperatively: a retrospective comparative study of 859 casesAnteroposterior radiograph showing all relevant angles used to define deformity: HVA (yellow lines), IMA (orange lines), DMAA (blue lines), and PDPAA (green lines)Back to article page