Incidence and factors influencing the occurrence of postoperative thrombosis in patients with lower limb fractures across different age groups: a retrospective study.

Fracture patients of different age groups require distinct risk management and perioperative treatments.

This study developed age-specific postoperative venous thrombosis prediction models, highlighting the different risk profiles between young/middle-aged and elderly patients.

For young/middle-aged patients, preoperative coagulation status should be optimized, postoperative anticoagulant overuse limited and fluid volume recovery enhanced.