FBSS stands for "Failed Back Surgery Syndrome", which is a chronic condition experienced by patients who have undergone spinal surgeries that have not been successful in reducing their pain. There are various synonyms used to describe this condition, including Post-Laminectomy Syndrome, Persistent Post-Operative Pain, and Chronic Back Pain. Other terms used include Failed Back Syndrome, Frequently Back Surgery Syndrome, and Incomplete Back Surgery Syndrome. These terms describe the same condition, which results in chronic pain, limited mobility, and a decreased quality of life. Synonyms for FBSS are vital in accurately diagnosing and treating the condition, as well as in conducting research to develop new treatment methods.