Sciatica is a painful condition caused by the irritation of the sciatic nerve. Sciatica can be acute (short term), lasting for a few weeks or chronic (long term), persisting for more than 3 months. It is important to understand that in most cases, sciatica will resolve itself within a few weeks or months and rarely causes permanent nerve damage.
Spinal fusion is the surgical technique of combining two or more vertebrae. A fusion of the vertebrae involves the insertion of secondary bone tissue obtained either from an autograft (tissues from your own body) or allograft (tissues from another person) to enhance the bone healing process.