The procedure
This procedure is done using local or general anaesthetic, with the patient lying face down. It aims to relieve sciatica by removing tissue from the damaged disc.
A small cut is made in the lower back and, using X‑ray imaging to identify the correct place, a guide wire is inserted. An endoscope (a thin tube with a camera on the end) and special instruments are inserted and used to remove tissue from the damaged disc. A laser may also be used to help remove the tissue. The patient can usually get up within a few hours of the procedure.