EMG Nerve Test of the Leg · St. Louis · Regen.MD physiotherapy
EMG Nerve Test of the Leg:
trace leg pain to its source
A leg EMG, done together with a nerve conduction study (NCS), shows if a nerve serving your low back or leg is squeezed or injured, and where. The test is done, read and reported by a physician.
Tests are ordered only when the result will steer what happens next.
What is nerve test of the leg?
Pairing EMG with a nerve conduction study (NCS) reveals squeezing or injury along a nerve serving the low back or leg. It is done, read and reported by a physician.
What it does for you
Leg pain, numbness or weakness may trace back to a compressed nerve root in the lower spine, or to a nerve out in the leg. The study sorts one from the other so treatment lands where the trouble is.
Its role around regenerative treatment
A disc, a facet joint and a nerve in the leg can all send pain down the same leg. Sorting them out before any procedure is how a plan stays targeted.
The experience on test day
Small pads send brief electrical pulses along the nerve; each feels like a quick snap. A very fine needle then samples a handful of leg muscles, which feels like a pinch. Nearly everyone resumes normal activity the same day.
Getting ready
Pick shorts or roomy pants. Skip any lotion or cream on the legs that morning.
Flag these for us beforehand
- Blood-thinning medicine
- A pacemaker
- Swelling or a skin condition on the leg
Time involved
Budget about 30 to 60 minutes. You get a start time when it is booked.
What to remember
- The study separates a spine source from a leg source.
- Legs stay lotion-free that day.
- Blood thinners and pacemakers get mentioned up front.
Show us you have it: Before you go, run through your test-day routine for us: clothing, skin, medicines. If a point is fuzzy, say so and we walk through it again with you.
Related reading: neuropathic pain, herniated disc options before surgery.
Other measurements we perform
- CMAT terrain check
- Cognivue memory check
- EMG of the arm
- Kinetisense motion scan
- RQ fuel test
- VNG balance test
Where this fits: the Regen.MD physiotherapy program, physician-directed rehab paired with our regenerative care. A physician must be in the building and reachable within moments before any treatment begins.