ABSTRACT
Objective The purpose of this investigation was to discuss the relationship between the rotation of lower extremity biomechanics and patellofemoral pain(PFP) .Methods With normal volunteers as controls ,patients with PFP were scanned by ul‐trathin CT ,keeping the bilateral lower extremity straight neutral .The anatomy parameters were measured and analysed ,such as femoral neck anteversion(FNA) ,femoral neck shaft angle(NSA) ,posterior condylar angle(PCA) ,femoral rotation relative to tibia (FRRT) ,tibial torsion angle(TTA) and patella tilt angle(PTA) .Results Compared with control group ,the PFP group FNA ,FR‐RT ,PCA ,TTA and PTA increase statistically significant (P0 .05) .It could be found that PTA had the most obvious influence on the VAS score ,followed by FNA and TTA ;and PTA had the most obvious influence on the WOMAC function score ,followed by TTA ;and significant negative correlation could be found between PTA and age (r= -0 .548 ,P<0 .05) .Conclusion PTA is a sensitive indicator to assess VAS score and WOMAC function score for individ‐uals with PFPS .Increases of PTA ,FNA ,PCA ,FRRT and TTA are associated with PFP for women .