Fig. 7From: Acetabular- and femoral orientation after periacetabular osteotomy as a predictor for outcome and osteoarthritisProgression of osteoarthritis and ASA, acetabular version and alpha angle. Illustration of a acetabular sector angles, b acetabular version and c alpha angles in degrees [°] in relation to the acetabular position (9 o’clock to 3 o’clock or acetabular height, as explained in the “Methods” section. The blue curve depicts the hips with no progression of osteoarthritis, the red curve the hips with progression of osteoarthritis. The respective angles are presented as mean with SD (error bars). An asterisk indicates a significant difference (p < .05) between the both groups in the respective positionBack to article page