Fig. 4.

Combined view of the hip load changes in two planes, medial to lateral and distal to proximal. Both lines pass through the ideal COR (0.0%, 0 mm). The black line represents the increase of the hip load change when the postoperative COR is moved exactly horizontally from 30 mm medial through the ideal COR and then 90 mm laterally. The grey line represents the increase of the hip load change when the postoperative COR is moved exactly vertically from 30 mm distal through the ideal COR and then 90 mm proximally