Pulsed Electromagnetic Field Stimulation in Lumbar Spine Fusion for Patients With Risk Factors for Pseudarthrosis

Area of Science:

• Orthopedics
• Biomedical Engineering
• Regenerative Medicine

Background:

• Lumbar spinal fusion surgeries are increasing, with patients often having risk factors for complications like pseudarthrosis.
• Pulsed electromagnetic field (PEMF) stimulation is a noninvasive adjunct therapy explored to enhance spinal fusion success and patient outcomes.

Purpose of the Study:

• To investigate the efficacy of PEMF stimulation as an adjunct therapy in patients undergoing lumbar spinal fusion with risk factors for pseudarthrosis.

Main Methods:

• A prospective, multicenter study enrolled 142 patients with risk factors (e.g., prior failed fusion, nicotine use, diabetes).
• PEMF was used as an adjunct to lumbar spinal fusion.
• Fusion status was assessed radiographically at 12 months, alongside patient-reported outcomes (SF-36, EQ-5D, ODI, VAS).

Main Results:

• Successful fusion was achieved in 88.0% of patients at 12 months.
• Fusion success rates were high across groups with 1, 2+, or 3+ risk factors (88.5%, 87.5%, 82.3% respectively).
• Significant improvements in pain, function, and quality of life were observed compared to baseline (P < 0.001), with a favorable safety profile.

Conclusions:

• Adjunct PEMF therapy in lumbar spinal fusion leads to high fusion rates and significant improvements in patient-reported outcomes, including pain and function.
• PEMF is a valuable tool for improving outcomes in lumbar spinal surgery patients, irrespective of pseudarthrosis risk factors.