Accuracy of Preoperative Scoring Systems for the Prognostication and Treatment of Patients with Spinal Metastases.

Overall, the scoring systems are accurate at differentiating patients into short-, intermediate-, and long-term survivors. More precise prediction of actual survival is limited and the decision for or against surgery should never be based on survival prognostication alone but should take into account symptoms such as neurological deficit or pain from pathological fracture and instability.