Spinal cord stimulation in low back and leg pain

Area of Science:

• Neurosurgery
• Pain Management
• Neurology

Background:

• Chronic low back and leg pain significantly impacts patient quality of life.
• Failed back surgery syndrome (FBSS) presents a complex challenge in pain management.
• Spinal cord stimulation (SCS) is an established treatment option for refractory neuropathic pain.

Purpose of the Study:

• To evaluate the efficacy and long-term outcomes of spinal cord stimulation (SCS) in patients with chronic low back and leg pain.
• To assess the success rate of SCS in patients with failed back surgery syndrome (FBSS) and other causes of refractory pain.
• To determine the degree of pain relief and patient satisfaction following SCS implantation.

Main Methods:

• A retrospective review of 33 patients with chronic low back and leg pain who underwent percutaneous testing of SCS.
• Patients included those with FBSS, vertebral fracture sequelae, Tarlov cysts, and spondyloarthrosis.
• Pain relief was assessed during a trial period (5-65 days), with successful candidates proceeding to chronic SCS implantation.

Main Results:

• 63.6% of patients (21 out of 33) achieved over 50% pain relief during the SCS trial, with a mean analgesia of 75%.
• Following chronic implantation, 40% of the initial cohort (13 patients) maintained successful pain relief at a mean follow-up of 45.5 months.
• Sustained pain relief in the long-term cohort averaged 66.6%.

Conclusions:

• Spinal cord stimulation (SCS) demonstrates significant short-term efficacy in reducing chronic low back and leg pain.
• A notable percentage of patients experience durable pain relief and functional improvement with long-term SCS therapy.
• SCS is a viable treatment option for carefully selected patients with refractory chronic pain, including those with FBSS.