Identifying the Best Candidates for Primary Tumour Resection Among Patients with Stage III and IV Osteosarcoma: A Population-Based Predictive Model

1. Abstract
1.1. Background: A survival benefit has been observed in patients with stage III and IV osteosarcoma who underwent surgical resection of the primary tumour. However, not all patients benefit from surgery; therefore, we developed a nomogram model to test the hypothesis that only a subset of patients with stage III and IV disease will benefit from surgery.