[Imaging measurement and analysis of related indexes of variation of femoral head rotation center].

Objective: To provide guidance for hip replacement by analyzing the variation of femoral head rotation center in different hip diseases.

Methods: A total of 5 459 patients were collected from March 2016 to June 2021, who took positive and proportional plain films of both hips for various reasons. The relative position between the rotation center of the femoral head and the apex of the greater trochanter was measured.