Background: Previous osteotomy may compromise subsequent knee replacement, but no guidelines considering knee arthroplasty after prior osteotomy have been developed. We describe a systematic ...

Corrections of the lower limb anatomy—varus derotation osteotomy or better: varus detorsion osteotomy —are therefore gaining increasing importance in the therapeutic repertoire (2, 3).

3D angle: angle between the mechanical axes before and after derotation.