CT-based HSA
QCT data were utilized for the analysis of proximal femoral geometry by CT-based HSA using QCT Pro Software version 5.1.3 and QCT Pro Bone Investigational Toolkit (BIT version 2.0, Mindways Software Inc. Austin, TX). Data were evaluated using the CTXA Hip Exam Analysis protocol (Mindways Software Inc. Austin, TX), followed by QCT BIT processing according to the standard procedure to obtain HSA indices, as described previously [A series analysis was performed for the FN, and the HSA indices (average CoTh, maximum CSMI, maximum SM, and BR) were obtained from 11 slices.