Legg-Calve´-Perthes disease - diagnostic value of acetabular-femoral head match index.

Early treatment of Legg-Calve´-Perthes disease (LCPD)can improve hip joint activity and life management in adulthood. However, the current classification of LCPD is based on imaging findings in the fragmented stage of the disease, which is prone to delay treatment. Therefore the aim of this study is to evaluate the potential risk factors associated with poor radiological outcomes of LCPD, and to develop a new index for hip consistency evaluation, which can be used to speculate radiographic outcomes at the time of the first visit.