ClinicalTrials.gg
Status unknownNCT04538807Updated Aug 31, 2021

EMG Finding According to the Type of Lumbar Disc Herniation

An observational study in Intervertebral Disc Displacement and Electromyography, sponsored by Yeungnam University Hospital. Status unknown at 1 site in Korea, Republic of. Open to participants aged 19 Years to 65 Years. Per ClinicalTrials.gov, last updated 2021-08-31.

Sponsored by Yeungnam University Hospital · Observational

The sponsor has not verified this record recently (last verified Aug 2021), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Case-only
Time perspective
Cross-sectional
Enrollment
74
Ages
19 Years to 65 Years
Sex
All
01

Study summary

Disc herniation is a common cause of low back pain and leg pain. Electromyography is the only test that can objectively examine nerve damage caused by a lumbar disc herniation. This study aimed to compare the MRI findings of disc herniation and the aspects of electromyography.

02

Conditions studied

  • Intervertebral Disc Displacement
  • Electromyography
03

In context

Intervertebral Disc Displacement

474 studies on the registry are indexed under Intervertebral Disc Displacement; 100 are open to participants now.

This study's planned enrollment of 74 is below the median of 100 across 117 observational studies indexed under Intervertebral Disc Displacement.

Browse Intervertebral Disc Displacement studies →

Lead sponsor

Yeungnam University Hospital is the lead sponsor of 8 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
19 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Tertiary referral hospital

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Radicular pain within 6 months
  • Disc herniation confirmed by lumbar MRI
  • undergoing electromyography

Exclusion criteria

Exclusion Criteria:

  • Patients who refused electromyography
  • Patients taking warfarin
  • Lower limb amputation patient
  • Pregnant women
  • Patients who have undergone surgical treatment for disc herniation
  • Patients with peripheral neuropathy ( AIDP, CIDP, diabetic amyotrophy, peroneal pals et al.)
05

Study design

Observational model
Case-only
Time perspective
Cross-sectional
Enrollment
74 participants (estimated)
Patient registry
No

Groups and cohorts

  • Lumbar disc herniation

    Patients are complaining of lower extremity radiating pain due to lumbar disc herniation.

    Diagnostic Test: electromyography

Interventions

  • Diagnostic testelectromyography

    Electromyography (EMG) is an electrodiagnostic medicine technique for evaluating and recording the electrical activity produced by skeletal muscles.

06

What researchers measure

Primary outcomes

  1. Denervation pattern of muscles in lower extremity

    The location of the lower limb muscles where spontaneous activity occurs

    Time frame: 1 day During the examination of Electromyogram

Secondary outcomes

  1. Disc herniation findings of lumbar MRI

    Anatomical location of disc herniation

    Time frame: 1 day During the examination of lumbar MRI

07

Study locations

1 of 1 sites recruiting
  • Yeungnam University Hospital
    Daegu, 42415, Korea, Republic of
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 31, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04538807
Lead sponsor
Yeungnam University Hospital
Responsible party
Dong Gyu Lee (Assistant professor, Yeungnam University Hospital) — Principal investigator
First posted
Sep 4, 2020
Start date
Sep 10, 2020
Primary completion
Dec 31, 2022 (estimated)
Completion
Dec 31, 2022 (estimated)
Last update
Aug 31, 2021

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Aug 2021. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion