Related Experiment Video
Updated: Jan 28, 2026

04:20
Author Spotlight: A Procedure for Mouse Dorsal Root Ganglion Cryosectioning
Published on: June 9, 2023
8.6K
A Prospective Study of Dorsal Root Ganglion Stimulation for Non-Operated Discogenic Low Back Pain
Jan Willem Kallewaard1, Caro Edelbroek1, Michel Terheggen1
1Department of Anesthesiology and Pain Medicine, Rijnstate Hospital Arnhem, Velp, The Netherlands.
Summary
Dorsal root ganglion (DRG) stimulation significantly reduced pain and disability in patients with discogenic low back pain (LBP). This innovative treatment improved quality of life for individuals with chronic LBP without prior surgery.
Area of Science:
- Neuromodulation
- Pain Management
- Spinal Surgery
Background:
- Discogenic low back pain (LBP) significantly impacts physical function and quality of life.
- Spinal cord stimulation (SCS) is effective for neuropathic pain.
- New SCS innovations show promise for chronic LBP, including discogenic pain.
Purpose of the Study:
- To evaluate the efficacy of dorsal root ganglion (DRG) stimulation.
- To assess DRG stimulation in a select group of patients with discogenic LBP.
- To investigate outcomes in patients with no prior history of back surgery.
Main Methods:
- Prospective study design.
- Twenty subjects with confirmed discogenic LBP and no prior surgery.
- DRG stimulation trials followed by permanent implantation for successful candidates.
- Assessment of pain, disability, quality of life, and mood at baseline and 12 months.
Main Results:
- Significant reduction in LBP ratings by 68.3% at 12 months (p < 0.001).
- Oswestry Disability Index scores decreased significantly (p < 0.001) at 6 and 12 months.
- Quality of life (EQ-5D index) improved from 0.61 to 0.84 at 12 months.
Conclusions:
- DRG stimulation effectively improved pain, function, and quality of life in discogenic LBP.
- Further research is needed to establish DRG stimulation's role in chronic discogenic LBP treatment algorithms.
- DRG stimulation represents a potential advancement in managing refractory discogenic LBP.
Related Concept Videos
Pain
1.4K
Pain serves as a critical warning signal that alerts the body to potential or actual harm. When mechanical pressure on the skin is intense, such as from a sharp pinch, the sensation transitions from touch to pain. Similarly, extreme temperatures, like a hot pot handle, convert the sensation of heat into pain. Pain can also result from overstimulation of other senses, such as blinding light, loud noise, or the intense heat from habañero peppers. This ability to sense pain is essential for...
1.4K
Primary and Secondary Growth in Roots and Shoots
60.4K
Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
60.4K
Operational Amplifiers
2.0K
The operational amplifier, often referred to as an op-amp, is a multifaceted building block of a circuit. This electronic component functions like a voltage-controlled voltage source and can also be used to create a voltage- or current-controlled current source. The design of an operational amplifier enables it to execute mathematical operations when external components like resistors and capacitors are linked to its terminals. An op-amp has the capacity to sum signals, amplify a signal,...
2.0K
Root Mean Square
3.8K
If in an experiment, data values have a probability of being both positive and negative, neither the arithmetic mean, the geometric mean, nor the harmonic mean can be used to calculate the central tendency of the data set. In particular, if the positive and negative values are equally likely, the arithmetic mean is close to zero.
For example, consider the velocity of gas molecules in a container. The gas molecules are moving in different directions, which might impart positive and negative...
For example, consider the velocity of gas molecules in a container. The gas molecules are moving in different directions, which might impart positive and negative...
3.8K
Vector Operations
2.2K
Vectors are physical quantities that have both magnitude and direction. The vector operations include addition, subtraction, and scalar multiplication.
A vector multiplied by a scalar value is called scalar multiplication. The result obtained is a new vector with a different magnitude. If the scalar is positive, the direction of the vector remains the same, but if it is negative, the direction of the vector is reversed. For example, the product of the mass and velocity yields the momentum.
A vector multiplied by a scalar value is called scalar multiplication. The result obtained is a new vector with a different magnitude. If the scalar is positive, the direction of the vector remains the same, but if it is negative, the direction of the vector is reversed. For example, the product of the mass and velocity yields the momentum.
2.2K
Operant Conditioning
2.9K
Operant conditioning, a key concept in behavioral psychology, involves using reinforcement and punishment to alter the likelihood of a behavior being repeated. B.F. introduced this type of conditioning. Skinner focused on voluntary behaviors and the consequences that follow them, influencing whether these behaviors will be strengthened or diminished.
Reinforcement in operant conditioning can be positive or negative, both of which serve to increase the likelihood of a behavior. Positive...
Reinforcement in operant conditioning can be positive or negative, both of which serve to increase the likelihood of a behavior. Positive...
2.9K

