Fig. 1

Standard AP radiographs of the pelvis and both hip joints showing different etiologies and severities of coxa vara. a Bilateral coxa vara following healed rickets. b Bilateral developmental coxa vara with a medial femoral neck defect and a vertically oriented physeal plate. c Typical unilateral coxa vara with a medial (lower) femoral neck defect. d Atypical unilateral coxa vara with a lateral (upper) femoral neck defect