Which Scoring System Best Predicts Long-term Survival in Patients With Spinal Metastasis in the Era of Targeted Systemic Treatment?

Most scoring systems exhibited low discriminative power, with only the SORG nomogram, OSRI, and modified Tokuhashi scores demonstrating moderate power for predicting long-term survival. In the most recent period, the OSRI demonstrated the highest predictive accuracy for both 1-year and 2-year survival.