Evaluation of Multi-Tined Expandable Electrode (MEE) Efficacy and Safety in Treatment of Lumbar Facet Arthropathy by Radiofrequency Neurotomies Compared to Conservative Medical Management.

Inclusion Criteria:

• Age > 18 years old.

• Patients with pain lasting at least 6 months.

• Patients with history of non-radiating low back pain.

• Patient who had two diagnostic medial branch blocks (MBB) with significant (>50%)improvement on both injections.

• Patient has signed study-specific informed consent.

• Patient has the necessary mental capacity to participate and is physically able tocomply with study protocol requirements.

Exclusion Criteria:

• Patient with low back pain with radiation or involvement of pain going into theirlegs below their knees.

• Patient did not receive satisfactory relief from diagnostic MBB (<50% relief).

• Patient is unable to receive radiation exposure.

• Patient is currently pregnant.

• Patient has a current local overlying low back or systemic infection.

• Patient currently receiving or seeking workers compensation, disabilityremuneration, and/or involved in injury litigation.

• Known or suspected drug or alcohol abuse.

• Diagnosed psychiatric disease (e.g., schizophrenia, major depression, personalitydisorders) that could interfere with study participation.

• Patient is participating in an investigational study or has been involved in aninvestigational study within 3 months prior to evaluation for participation.

• Patient has an implanted intrathecal pump or spinal neuromodulation device.

• Patient currently on daily oral morphine equivalent (OME) of 50.