Risk Factors and Prediction of Chronic Postsurgical Pain Among Patients With Distal Lower Extremity Fracture: Cohort Analysis

This study demonstrates that pain management strategies, surgical approaches, and patient psychological factors collectively influence the development of CPSP. By integrating machine learning-based big data variable screening with the interpretability of traditional logistic regression, we developed a web-based predictive nomogram capable of identifying early CPSP risk at hospital discharge, thereby improving accessibility to transitional pain care interventions.