Studies were excluded if they included pain from structures other than the patellofemoral joint, and other knee pathologies such as internal ... and a bilateral difference of at least 3° in the hip ...

Pain related to function was measured with Kujala Patellofemoral Score.25 Test–retest reliability intraclass correlation coefficients (ICCs) are 0.76 (VAS worst pain), 0.83 (pain with activity) and ...