Clinical experience in cell-based therapeutics: intervention and outcome

Area of Science:

• Regenerative Medicine
• Spinal Surgery
• Biomaterials

Background:

• Discectomy for disc herniation leads to nucleus pulposus loss and reduced disc height.
• Autologous disc chondrocyte transplantation (ADCT) aims to restore disc metabolism and mechanics.
• Previous studies demonstrated nucleus regeneration potential in canine models and pilot clinical trials.

Purpose of the Study:

• To compare the safety and efficacy of ADCT plus discectomy versus discectomy alone.
• To evaluate long-term pain relief, disc height maintenance, and prevention of adjacent segment disease.

Main Methods:

• A prospective, controlled, randomized, multicentre study initiated in 2002.
• Patient evaluation using Oswestry, Quebec Back Pain Disability Scale, Prolo, and VAS scores.
• Disc height assessment via MRI, with adjacent segment hydration analysis.

Main Results:

• ADCT group showed a clinically significant reduction in low back pain across all scoring systems.
• Median Oswestry Score was 2 in the ADCT group versus 6 in the control group.
• Disc height decreased over time only in the control group; adjacent segments in ADCT patients retained hydration.

Conclusions:

• ADCT combined with discectomy offers significant pain relief and functional improvement for patients with disc herniation.
• ADCT effectively maintains disc height and preserves the health of adjacent intervertebral discs.
• This biological restoration approach shows promise for long-term spinal health after discectomy.