Stereotactic Body Radiation Therapy and Vertebroplasty in Treating Patients With Localized Spinal Metastasis

RATIONALE: Stereotactic body radiation therapy may be able to send x-rays directly to the tumor and cause less damage to normal tissue. Vertebroplasty may help prevent fractures and spinal cord compression caused by spinal metastasis. Giving stereotactic body radiation therapy together with vertebroplasty may help lessen pain and improve quality of life of patients with spinal metastasis. PURPOSE: This phase II trial is studying how well giving stereotactic body radiation therapy together with vertebroplasty works in treating patients with localized spinal metastasis.