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Laminectomy versus percutaneous electrode placement for spinal cord stimulation.
A T Villavicencio1, J C Leveque, L Rubin
1Division of Neurosurgery, Duke University Medical Center, Durham, North Carolina 27712, USA.
Neurosurgery
|February 26, 2000
Summary
Spinal cord stimulation (SCS) effectively treats chronic pain. Laminectomy-placed electrodes offer superior long-term pain relief compared to percutaneous electrodes for SCS.
Area of Science:
- Neurosurgery
- Pain Management
- Medical Devices
Background:
- Chronic pain in the lower back and extremities often requires advanced treatment options.
- Spinal cord stimulation (SCS) is a recognized therapy for refractory pain.
- Electrode placement technique may influence SCS long-term efficacy.
Purpose of the Study:
- To compare the long-term effectiveness of SCS using laminectomy-style electrodes versus percutaneously implanted electrodes.
- To evaluate pain reduction and patient outcomes based on electrode implantation method.
Main Methods:
- A cohort of 41 patients received SCS trials with temporary electrodes.
- Permanent systems were implanted if trial stimulation achieved >50% pain reduction.
- Long-term follow-up (median 34 months) assessed pain via Visual Analog Scale and an outcome scale.
Main Results:
- 66% of patients proceeded to permanent SCS implantation.
- Laminectomy electrode placement in the thoracic region showed a significant decrease in Visual Analog Scores (P < 0.0001).
- Percutaneous thoracic electrode placement resulted in a significant decrease in Visual Analog Scores (P < 0.001), but laminectomy placement yielded superior long-term pain relief (P = 0.02).
Conclusions:
- Spinal cord stimulation is effective for chronic lower back and extremity pain resistant to conservative treatments.
- Laminectomy-placed thoracic electrodes demonstrate significantly better long-term effectiveness for SCS compared to percutaneous placement.