[Intradiscal temperature variation resulting from radiofrequency thermal therapy. Cadaver study]

Area of Science:

• Spine Surgery
• Biomedical Engineering
• Pain Management

Context:

• Degenerative disc disease is a leading cause of low back pain.
• Minimally invasive thermal technologies are emerging for disc disease treatment.
• Understanding treatment pathophysiology is crucial for optimizing outcomes.

Purpose:

• To measure intradiscal temperature variations following radiofrequency thermodiscoplasty.
• To assess the impact of radiofrequency application on disc tissue.
• To establish safety parameters for thermodiscoplasty procedures.

Summary:

• Radiofrequency was applied to cadaveric spine specimens at varying intervals.
• Intradiscal temperature, disc weight, and tissue tightening were measured.
• Mean weight reduction was 1.4g, mean temperature variation was 3.0°C, and mean tightening was 1.4mm.

Impact:

• Results demonstrate the effectiveness of radiofrequency thermodiscoplasty within safety limits.
• Measured temperatures were lower than in comparable studies.
• Weight reduction and tightening indicate disc shrinkage and dehydration, informing treatment parameter selection.