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Related Concept Videos

Muscle Stimulation Frequency01:22

Muscle Stimulation Frequency

5.1K
The contraction strength of muscles is regulated by motor neurons, which modulate the frequency of action potentials dispatched to the motor units based on the body's requirements. This process of varying the muscle stimulation frequency allows muscles to contract with a force that is precisely tailored to the needs of the moment, whether lifting a feather or a heavy box.
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...
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Related Experiment Video

Updated: Apr 9, 2026

Treating Low Back Pain in Failed Back Surgery Patients with Multicolumn-lead Spinal Cord Stimulation
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Treating Low Back Pain in Failed Back Surgery Patients with Multicolumn-lead Spinal Cord Stimulation

Published on: June 26, 2018

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High-frequency - Spinal Cord Stimulation.

R Rapcan, J Mlaka, M Venglarcik

    Bratislavske Lekarske Listy
    |June 19, 2015
    PubMed
    Summary
    This summary is machine-generated.

    High-frequency spinal cord stimulation (SCS) significantly relieved low back pain in patients with failed back surgery syndrome (FBSS). This high-frequency SCS therapy improved pain scores and performance status within 12 months.

    Keywords:
    failed back surgery syndromehigh - frequency stimulationpredominant back painspinal cord stimulation.

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    Area of Science:

    • Neurology
    • Pain Management
    • Spinal Surgery

    Background:

    • Failed back surgery syndrome (FBSS) is a challenging condition often characterized by persistent low back pain.
    • High-frequency spinal cord stimulation (SCS) is an emerging therapy for chronic pain management.

    Purpose of the Study:

    • To present clinical experience with high-frequency SCS for FBSS patients with predominant low back pain.
    • To evaluate the efficacy of high-frequency SCS in improving pain, performance status, and patient satisfaction.

    Main Methods:

    • A cohort of 21 FBSS patients with predominant low back pain underwent high-frequency SCS.
    • SCS leads were implanted at T8-10 or T8-12 vertebral levels, using single or dual lead placement.
    • Outcomes including Visual Analog Scale (VAS) pain scores, performance status, patient satisfaction, and opioid consumption were assessed over 12 months.

    Main Results:

    • A significant reduction in mean VAS pain scores from 8.7 to 4.0 was observed after 12 months (p < 0.001).
    • Performance status significantly improved from a mean of 3.0 to 1.8 (p < 0.001).
    • Patient satisfaction scores remained consistent throughout the follow-up period.

    Conclusions:

    • High-frequency SCS provides significant low back and leg pain relief for FBSS patients.
    • The therapy also leads to a significant improvement in patient performance status within 12 months.
    • A subgroup utilizing variable frequencies also reported substantial pain relief.