This study aimed to quantitatively analyze subchondral vascularization during the progression of osteoarthritis (OA) in the elderly, particularly regarding the timing of initial blood vessel emergence and when their density peaks. A total of 129 independent areas from 43 human femoral heads, obtained through arthroplasty for OA or hemiarthroplasty for fractures, were analyzed. The femoral heads were grouped by Kellgren-Lawrenc...

This study aimed to develop a laboratory-based frailty index (FI-Lab) to predict 12-month mortality risk in elderly patients following a hip fracture (HF). A retrospective analysis of 235 consecutive patients over 70 years old, who underwent HF surgery, was conducted. The FI-Lab, based on 21 routine blood parameters, was evaluated using Receiver Operating Characteristics, Area Under the Curve (AUC), Kaplan–Meier curves, and Co...