Does lumbar spinal degeneration begin with the anterior structures? A study of the observed epidemiology in a community-based population

BMC Musculoskeletal Disorders

Research Article

James Rainville¹  Ali Guermazi²  Jeffrey G Jarvik³  Asako Miyakoshi³  Pradeep Suri⁴  Ling Li⁵  David J Hunter⁶  Jeffrey N Katz⁷ 

[1] Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, USA;Division of Research, New England Baptist Hospital, Boston, USA;Department of Radiology, Boston University School of Medicine, Boston, USA;Departments of Radiology, Neurological Surgery and Health Services, University of Washington Medical Center, Seattle, USA;Division of PM&R, VA Boston Healthcare System, Boston, USA;Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, USA;Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Boston, USA;Division of Research, New England Baptist Hospital, Boston, USA;Division of Research, New England Baptist Hospital, Boston, USA;Division of Research, New England Baptist Hospital, Boston, USA;Northern Clinical School, The University of Sydney, Sydney, Australia;Division of Rheumatology, Immunology and Allergy, Department of Medicine and Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, USA;

关键词: degenerative cascade;    degeneration;    disk;    facet joint;    arthritis;    lumbar;    spine;   

DOI  :  10.1186/1471-2474-12-202

 received in 2011-04-16, accepted in 2011-09-13,  发布年份 2011

来源: Springer

【 摘 要 】

Background-Prior studies that have concluded that disk degeneration uniformly precedes facet degeneration have been based on convenience samples of individuals with low back pain. We conducted a study to examine whether the view that spinal degeneration begins with the anterior spinal structures is supported by epidemiologic observations of degeneration in a community-based population.Methods-361 participants from the Framingham Heart Study were included in this study. The prevalences of anterior vertebral structure degeneration (disk height loss) and posterior vertebral structure degeneration (facet joint osteoarthritis) were characterized by CT imaging. The cohort was divided into the structural subgroups of participants with 1) no degeneration, 2) isolated anterior degeneration (without posterior degeneration), 3) combined anterior and posterior degeneration, and 4) isolated posterior degeneration (without anterior structure degeneration). We determined the prevalence of each degeneration pattern by age group < 45, 45-54, 55-64, ≥65. In multivariate analyses we examined the association between disk height loss and the response variable of facet joint osteoarthritis, while adjusting for age, sex, BMI, and smoking.Results-As the prevalence of the no degeneration and isolated anterior degeneration patterns decreased with increasing age group, the prevalence of the combined anterior/posterior degeneration pattern increased. 22% of individuals demonstrated isolated posterior degeneration, without an increase in prevalence by age group. Isolated posterior degeneration was most common at the L5-S1 and L4-L5 spinal levels. In multivariate analyses, disk height loss was independently associated with facet joint osteoarthritis, as were increased age (years), female sex, and increased BMI (kg/m2), but not smoking.Conclusions-The observed epidemiology of lumbar spinal degeneration in the community-based population is consistent with an ordered progression beginning in the anterior structures, for the majority of individuals. However, some individuals demonstrate atypical patterns of degeneration, beginning in the posterior joints. Increased age and BMI, and female sex may be related to the occurrence of isolated posterior degeneration in these individuals.

【 授权许可】

CC BY   
© Suri et al; licensee BioMed Central Ltd. 2011