Peripheral nerve field stimulation following dorsal root entry zone lesion: a technical note.

Peripheral nerve field stimulation (PNFS) can effectively manage pain localized to one or two dermatomes that are refractory to conventional approaches, such as chronic low back pain. However, its utility in pain management in the upper limbs is limited due to the risk of lead displacement related to articular and mobile segment constraints.In this technical note, we describe a 58-year-old man with neuropathic pain refractory to extensive medical treatment, and dorsal root entry zone lesion.

Peripheral Nerve Stimulation Implantation Combining Ultrasound With Microendoscopy for Management of Chronic Neuropathic Pain: A Case Series Study.

Background: Peripheral nerve stimulation (PNS) has emerged as a minimally invasive percutaneous procedure addressing neuropathic pain. However, the percutaneous cylindrical lead ultrasound-guided implantation procedure requires expertise that limits widespread PNS utilization. To overcome these challenges, a microinvasive endoscopy device has very recently been developed, enhancing the precision of PNS implantation by providing accurate visualization of the targeted nerve.

How to Do It: Microsurgical DREZotomy for Pain After Brachial Plexus Injury: 2-Dimensional Operative Video.

More than three-quarters of victims of brachial plexus injury suffer from refractory neuropathic pain.1-6 Main putative mechanism is paroxysmal hyperactivity in the dorsal horn neurons at the dorsal root entry zone (DREZ) as demonstrated by microelectrode recordings in animal models7 and patients.8 Pain relief can be achieved by lesioning the responsible neurons in the spinal cord segments with avulsed rootlets.