Short Interval Postoperative Stereotactic Body Radiation Therapy (SBRT) After Surgical Intervention for Spine Metastases

PRIMARY OBJECTIVE: I. To evaluate the local control rate (LC) of treated metastatic sites in patients who undergo surgery for spinal metastasis followed by short interval postoperative spine Stereotactic Body Radiation Therapy (SBRT). SECONDARY OBJECTIVE: I. Evaluate the postoperative wound complication rate in participants who undergo surgery for spinal metastasis followed by short-interval postoperative spine SBRT. II. Determine the radiation toxicity of short-interval postoperative spine SBRT in participants. III. Determine the progression-free survival (PFS) in participants who undergo surgery for spinal metastasis followed by short-interval postoperative spine SBRT. IV. Determine the overall survival (OS) in participants who undergo surgery for spinal metastasis followed by short-interval postoperative spine SBRT. V. Evaluate the quality of life (QoL) of participants who undergo surgery for spinal metastasis followed by short-interval postoperative spine SBRT. OUTLINE: Participants will received a short interval postoperative SBRT 3-14 days after standard of care surgery for spinal metastases. The SBRT treatment will be delivered up to five sessions in an inpatient or outpatient setting. Participants are follow-up for at month 1, 6, and 12 after SBRT, until removal from study or death, whichever comes first.