Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2023 Jul 10;24(1):561.
doi: 10.1186/s12891-023-06698-y.

Influence of weight-bearing on the 3D movement of lumbar facet joints in the sitting position

Affiliations

Influence of weight-bearing on the 3D movement of lumbar facet joints in the sitting position

Ye Han et al. BMC Musculoskelet Disord. .

Abstract

Objective: To analyze the motion characteristics of lumbar facet joints and to observe the effect of weight-bearing on lumbar facet joints in the sitting position.

Methods: Ten normal subjects (5 males and 5 females) were recruited and scanned by CT, and their lumbar 3D models were reconstructed by software. The images of flexion and extension of lumbar facet joints in the sitting position were collected without weight-bearing and weight-bearing 10 kg, and the 2D model was constructed by software. The 2D-3D model was matched to restore the flexion and extension motion changes of the subjects' lumbar spine in the sitting position. Coordinates were established in the middle of the vertebral body and copied to the facet joints. Measure and record the lumbar facet joint movement distance through coordinate system. The relevant data of facet joints were collected.

Results: In the L3/4 segment, after weight loading, the displacement of the left facet joint in the X axis became larger, while that in the Y axis and Z axis decreased. The displacement of the right facet joint in the X axis and Y axis increased, and the Z axis displacement decreased. The rotation angle of the bilateral facet joints also decreased. In the L4/5 segment, after loading, the displacements of the X, Y, and Z axis displacements of both sides increase, while the rotation angles of α and β increase, while the rotation angle of γ decreases. In the L5/S1 segment, the displacements of the X, Y, and Z axes on the left side decrease. The displacement of the X and Y axes on the right side decreases, while the displacement on the Z axis increases. The rotation angles of α and γ increase, and the rotation angle of the β axis decreases.

Conclusion: When sitting, the flexion and extension distance and rotational displacement of lumbar facet joints are not affected by weight-bearing. In addition, there is asymmetry in the movement of the left and right facet joints, and weight bearing has no effect on the asymmetry of the motion.

Keywords: Lumbar facet joints; Lumbar, DFIS; Sitting; Weight-bearing.

PubMed Disclaimer

Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
Lumbar vertebra model reconstructed by Mimics 19.0
Fig. 2
Fig. 2
Dual fluoroscopic imaging system: The DFIS system was composed of two mobile X-ray machines placed perpendicular to each other
Fig. 3
Fig. 3
Participant subject sits in a height-adjustable seat and performs maximal flexion and extension movements with wear-bearing 10 kg. (a) Neutral position (b) Flexion (c) Extension
Fig. 4
Fig. 4
Established coordinate system, which establishes coordinates at facet, spinous process and other positions
Fig. 5
Fig. 5
Spine vertebral bodies were adjusted in Rhinoceros software to match the 2D background and 3D model to restore vertebral body position in various postures

Similar articles

Cited by

References

    1. Baradaran Mahdavi S, Riahi R, Vahdatpour B, Kelishadi R. Association between sedentary behavior and low back pain; a systematic review and meta-analysis. Health Promot Perspect. 2021;11(4):393–410. doi: 10.34172/hpp.2021.50. - DOI - PMC - PubMed
    1. Agarwal S, Steinmaus C, Harris-Adamson C. Sit-stand workstations and impact on low back discomfort: a systematic review and meta-analysis. Ergonomics. 2018;61(4):538–52. doi: 10.1080/00140139.2017.1402960. - DOI - PubMed
    1. Curran M, O’Sullivan L, O’Sullivan P, Dankaerts W, O’Sullivan K. Does using a Chair Backrest or reducing seated hip flexion influence trunk muscle activity and discomfort? A systematic review. Hum Factors. 2015;57(7):1115–48. doi: 10.1177/0018720815591905. - DOI - PubMed
    1. Tong MH, Mousavi SJ, Kiers H, Ferreira P, Refshauge K, van Dieën J. Is there a relationship between lumbar proprioception and low back Pain? A systematic review with Meta-analysis. Arch Phys Med Rehabil. 2017;98(1):120–36e2. doi: 10.1016/j.apmr.2016.05.016. - DOI - PubMed
    1. O’Sullivan K, O’Keeffe M, O’Sullivan L, O’Sullivan P, Dankaerts W. The effect of dynamic sitting on the prevention and management of low back pain and low back discomfort: a systematic review. Ergonomics. 2012;55(8):898–908. doi: 10.1080/00140139.2012.676674. - DOI - PubMed

LinkOut - more resources