The Study of Facet Tropism in Lumbar Vertebral ColumnLotfinia I1* and Imani MT2
- *Corresponding Author:
- Dr Iraj Lotfinia
Professor of Neurosurgery
Tabriz University of Medical Science
E-mail: [email protected]
Received Date: June 15, 2016; Accepted Date: December 13, 2016; Published Date: December 20, 2016
Citation: Lotfinia I, Imani MT. The Study of Facet Tropism in Lumbar Vertebral Column. Journal of Surgery [Jurnalul de chirurgie]. 2016; 12(4):147-149 DOI: 10.7438/1584-9341-12-4-3
Copyright: © 2016 Lotfinia I, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Objective: Facet tropism is defined as asymmetry in both the facet joint angles of the lumbar and lumbosacral regions. In the present study, the authors attempt to determine lumbar facet angles and incidence of facet tropism in adults. Materials and Methods: 54 patients (30-50 years) admitted to the hospital due to spinal trauma with normal imaging and examination were included and evaluated in the lumbar levels of L2-L3, L3-L4, L4-L5 and L5-S1 using CT scan. Results: The mean degree of right and left L2-L3 facet angle was 29.51° (sd 3.03°) and 31.22° (sd 4.44°), respectively and the mean degree of right and left L3-L4 was 33.57° (sd 6.29°) and 34.71° (sd 7.68°), respectively. The mean measurement of right and left L4-L5 facet angle was 37.02° (sd 7.37°) and 39.48° (sd 7.78°), respectively. Finally, the mean degree of right and left L5-S1 facet angle was 44.51° (sd 6.98°) and 46.34 ° (sd 8.10°), respectively. Conclusion: Low-degree facet tropism is common in lumbar region and the most involved levels are L4-L5 and L5-S1.