e356 Does Primary Tumor Resection Improve Survival in Primary Malignant Bone Tumors with Distant Metastases? A Study Using the SEER Database.

e357 Does Tumor Necrosis Impact Prognosis in Chondroblastic and Osteoblastic Osteosarcoma? A Study From a Large Tertiary Care Academic Center

e358 Comparative Survival Analysis of Surgical Resection versus Non-Surgical Treatment for Metastatic Primary Bone and Soft Tissue Tumors: An NCDB Study

e359 Intraoperative Frozen Bone Marrow Margins During Long Bone Ewing Sarcoma Resection – More Trouble Than They’re Worth?

e360 The Cardiopulmonary Effects of Varying Stem Length in Cemented Hip Arthroplasty for Proximal Femoral Metastases