The Phase 1b portion of this study is to ensure the safety and tolerability of standard dose of zoledronic acid intravenously as assessed by incidence of dose limiting toxicities (DLT). Although the safety of use of this drug has been established in patients with bone metastases from solid tumors (breast, prostate) and in patients with hypercalcemia of malignancy and multiple myeloma, it has not been tested in patients with chondrosarcoma. Surgery will be performed between day 21 to 31 from the dose of zoledronic acid to allow its effect on the tumor and resolution of toxicities. A total of 6 patients will be enrolled in this run-in phase 1b. Patients will be followed post operatively as per NCCN guidelines with local and systemic imaging.