Navigation of the cup in total hip arthroplasty is well analyzed and shows accurate results, reducing cup outliers of Lewinnek’s “safe zone.” With regard to the combined anteversion of cup and stem, ...

Femoral anteversion refers to medial torsion of the femur, which is a normal variant in most children, but may be excessive in a small minority. In this minority it leads to in-toeing of the feet and ...

But femoral retroversion has a nasty habit of laughing at your labral repair while quietly sabotaging your outcomes.