1. Copyright © 2012 Lippincott Williams & Wilkins. Unauthorized commercial reproduction of this slide is prohibited Supplemental PowerPoint Slides The Natural History of Degenerative Spondylolisthesis of the Cervical Spine With 2-to 7-Year Follow-up Moon Soo Park, MD, PhD,* Seong-Hwan Moon, MD,† Hwan-Mo Lee, MD,† Seok Woo Kim, MD,* Tae-Hwan Kim, MD,* Bo-Kyung Suh, MD,*and K. Daniel Riew, MD§ Department of Orthopaedic Surgery, Hallym University Sacred Heart Hospital, Medical College of Hallym University, 896, Pyeongchon-dong, Dongan-gu, Anyang-si, Gyeonggi-do, 431-070, Republic of Korea †Department of Orthopaedic Surgery, Yonsei University College of Medicine, 250 Seongsan-ro, Seodaemun-gu, Seoul 102-752, Republic of Korea

2. Copyright © 2012 Lippincott Williams & Wilkins. Unauthorized commercial reproduction of this slide is prohibited Supplemental PowerPoint Slides Cervical degenerative spondylolisthesis is common in patients older than 50, who sometimes require surgical treatment due to clinical symptoms. There is no report regarding its natural history. We report a retrospective case series of 27 patients with cervical degenerative spondylolisthesis assessed by neutral and dynamic lateral radiographs of the cervical spine with a mean follow up period of 39.0 months (range, 24-92). None of the anterolistheses or retrolistheses had progressed by the final visit.

3. Copyright © 2012 Lippincott Williams & Wilkins. Unauthorized commercial reproduction of this slide is prohibited Supplemental PowerPoint Slides  In conclusion, our results suggest that cervical degenerative anterolisthesis and retrolisthesis appear to be stable over 2 to nearly 8 years.  While those with retrolisthesis appear to have a higher propensity to increase their subluxation, none dislocated or suffered neurologic damage.  In the absence of neurologic symptoms, we recommend observation of patients with degenerative spondylolistheses of the cervical spine