The peripheral nerve stimulation system consists of a small electrical device that is connected to a tiny electrical wire called an electrode.
The electrode is inserted near the target nerve using a small cut through the skin and muscle, and then secured in place using a tiny stitch.
Initially, the electrode is placed as a trial, with the electrical device being kept outside of the body.
Peripheral nerve stimulation is then performed over a period of seven to ten days.
If the treatment successfully relieves pain, then a second procedure is performed to implant the electrical device more permanently under the skin.
Both procedures are done under either a local anaesthetic with light sedation or using a general anaesthetic.
Following permanent implantation, there is a period of monitoring in hospital for one to two days and then a further review with a specialist after six to eight weeks.