This trial is investigating the safety and effectiveness of using the patient's own fat cells for repair of disc degeneration. The trial is being conducted at the Korea University Anam Hospital in conjunction with RNL Bio Co Ltd and proposes to enrol eight patients with back pain due to intervertebral disc degeneration. All participants will receive mesenchymal stem cells that had been previously harvested from their own fat. The cells will be delivered by an injection directly into the affected disc. Participants will be monitored for complications and changes in their clinical condition. The trial commenced in July 2012 and is expected to be completed in 2013.