Electrical Impedance Myography of Neck and Low Back Pain

1. Radiculopathy Subjects:

Inclusion Criteria:

- Age 21-80 years old

- History consistent with radiculopathy based on clinical, radiologic, and
standard electrophysiological criteria, as determined by spine expert (Dr. John
Keel)

Exclusion Criteria:

- Age under 21 or over 80

- History of a generalized neuromuscular condition, except for mild polyneuropathy
or common mononeuropathies (e.g., carpal tunnel syndrome, ulnar neuropathy at
the elbow)

- History of moderate-to-severe ongoing medical conditions producing generalized
disability, such as advanced cardiac or renal disease

- Metal spine implants of any type

2. Musculoskeletal Back Pain Subjects:

Inclusion Criteria:

- Age 21 to 80 years old

- Low back or neck pain without evidence to suggest neuropathic component; i.e.,
without radiation of pain, sensory loss or weakness

Exclusion Criteria:

- Age under 21 or over 80

- History of sciatica or cervical radiculopathy

- History of a generalized neuromuscular condition, except for mild polyneuropathy
or common mononeuropathies (e.g., carpal tunnel syndrome, ulnar neuropathy at
the elbow)

- History of moderate-to-severe ongoing medical conditions producing generalized
disability, such as advanced cardiac or renal disease

- Metal spine implants of any type

3. Undiagnosed Lower Back or Neck Pain Subjects:

Inclusion Criteria:

- Age 21 to 80 years old

- Major complaint of lower back or neck pain

Exclusion Criteria:

- Age under 21 or over 80

- Recent (<6 month) history of similar symptoms that has been evaluated

- History of a generalized neuromuscular condition, except for mild polyneuropathy or
common mononeuropathies (e.g., carpal tunnel syndrome, ulnar neuropathy at the elbow)

- History of moderate-to-severe ongoing medical conditions producing generalized
disability, such as advanced cardiac or renal disease

- Metal spine implants of any type