A review of bone metastasis and its treatments, with a special emphasis on local and systemic radiotherapy

Bone is one of the most common sites of metastatic disease in malignancies. Many of the cases are asymptomatic and may be diagnosed in primary or secondary follow-up، but in symptomatic cases pain is the prominent symptom which is mostly exaggerated at nights. The improved survival of cancer patients with bony metastases in recent years، specially in breast and prostate cancer، has given a greater importance to the careful choice of treatments in this setting. This can lead to a better quality of life، lower treatment cost، prevention of disabilities، less delay in primary cancer therapies، and decrease of life-threatening events for the patients. Here we review the metastatic disease of the bone and its treatments، with emphasis on local and systemic radiation therapy. Current literature about bone metastasis and its treatments was reviewed through a search of available databases on internet for papers published in 1995-2013. Special attention was given to the research trials and studies performed by the authors on this setting. Treatment of bone metastases consist of analgesics، radiotherapy، surgery and bisphosphonates. Control of bone metastases is a challenging process، necessitating a multi-disciplinary approach and teamwork between the treating physicians. Radiotherapy is the most useful modality for this purpose in oncology، given both as a local and systemic therapy. We hope that this review would be able to help in choosing the best treatment option for this common palliative situation in Iranian cancer patients.