Subjects and recruitment 15 consecutive patients with histologically confirmed non-small cell lung cancer and bone metastases of the thoracic or lumbar segments of the vertebral column will be screened for this trial in the Radiooncology Department of the Heidelberg University Clinic. Inclusion criteria are an age of 18 to 80 years, acute neurological symptom caused by metastatic spinal cord compression, no radiotherapy in this spinal area before, and written consent to participate.