Kinematic Characteristics and Biomechanical Changes of Lower Lumbar Facet Joints Under Different Loads

Song, Yang; Wen, Wangqiang; Xu, Jin; Zhang, Zepei; Han, Yang; Li, Kepeng; Wang, Xiaodong; Xu, Haoxiang; Liu, Jianan

doi:10.1111/os.12894

Cited by 7 publications

(6 citation statements)

References 23 publications

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“…However, 3D anatomical measurements of the FJ orientation have not been reported in the Chinese population. Furthermore, kinematic characteristics in the different activities of the FJ of the lumbar spine have been less frequently reported, and past studies have focused on the different movements in the standing position (12,19,24). Sitting is as common a physiological position as standing in daily life; however, the kinematic changes of FJ in the sitting position have not been studied extensively.…”

Section: Discussionmentioning

confidence: 99%

3D orientation and kinematic characteristics of zygapophyseal joints while sitting

Kou¹,

Song²,

Han³

et al. 2022

Ann Transl Med

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Background: Orientation of the lumbar facet joints (FJs) in the transverse plane is associated with degenerative lumbar spine disease. However, there is a lack of measurements of the sagittal and coronal facet angles, and the effect of 3D facet angles on joint motion in the sitting position is unknown. The present study was to investigate the 3D orientation and in vivo motion characteristics of the FJ in the sitting position.Methods: Dual fluoroscopic imaging system and computed tomography (CT) were used to determine the 3D orientation and kinematic characteristics of FJs. L3-S1 segments were studied in 10 asymptomatic participants (5 male and 5 female, age: 25-35 years, body mass index: 22.4±1.8). Angles of the facet in the sagittal, coronal, and axial planes, and the range of motion of the FJs in seated flexion and extension movements were measured. Results:The difference in sagittal facet angles between the 2 sides of the L3-S1 facet joints was not significant. The superior coronal facet angle on the left side of L5 was significantly smaller than that on the right side by 6.4° (P=0.01). The inferior transverse facet angle on the left side of L5 was greater than that on the right side by 7.1; the results were not statistically significantly different. In the sitting position, the range of motion of the left and right sides of L5-S1 differed significantly, with the right side being 5.5° (P=0.004) and 11.7° (P=0.026) greater than the left side in the sagittal and coronal planes, respectively. There was a correlation between mobility and the 3D orientation angle of the FJs in each segment.Conclusions: Quantification of the 3D orientation of the lumbar spine FJs provides new perspectives to study the kinematics of the lumbar spine and the etiology of lumbar degenerative diseases. In sitting flexion and extension movements, there is a significant difference in the left-right lateral mobility of the FJs of the L5-S1 segments. With the exception of the transverse facet angle of the lumbar spine FJs, the sagittal and coronal facet angles also have an effect on lumbar spine mobility.

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Section: Discussionmentioning

confidence: 99%

3D orientation and kinematic characteristics of zygapophyseal joints while sitting

Kou¹,

Song²,

Han³

et al. 2022

Ann Transl Med

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“…Previous studies on lumbar facet joint motion are mostly based on the standing position. Song et al [ 21 ] performed related studies on facet joint motion in the standing position and concluded that there was no significant difference in displacement under different weight loads in different segments. Our study found that at 0 kg, the left and right (X axis) and anterior and posterior (Y axis) displacements between L3-4 and L4-5 and the vertical displacement (Z axis) between L3-4 and L4-5 were also smaller than those studied by Song et al, while at 10 kg, the left and right (X axis) and anterior and posterior (Y axis) displacements between L3-4 and L4-5 were relatively smaller than those studied by Song et al, while the vertical displacement (Z axis) was larger.…”

Section: Discussionmentioning

confidence: 99%

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

Han

Wang

et al. 2023

BMC Musculoskelet Disord

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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.

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“…Previous studies on lumbar facet joint motion are mostly based on standing position. Song et al (21) made related studies on facet joint motion in standing position and concluded that there was no statistical difference in displacement under different weight loads in different segments. Our study found that, in 0kg, the left and right (X-axis) and anterior and posterior (Y-axis) displacement between L3-4 and L4-5, and the vertical displacement (Z-axis) between L3-4 and L4-5 were also smaller than those studied by Song et al, while in 10kg, the left and right (X-axis) and anterior and posterior (Y-axis) displacement between L3-4 and L4-5 were relatively smaller than those studied by Song et al, while the vertical displacement (Z-axis) was larger.…”

Section: Discussionmentioning

confidence: 99%

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

Han

Wang

et al. 2022

Preprint

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Background Recognizing the motion characteristics of lumbar facet joints is helpful to prevent and treat lumbar degenerative diseases. At present, the research on the motion of lumbar facet joints is mainly focus on motion characteristics of lumbar facet joints without weight-bearing. However, there is no related research on whether weight-bearing has an effect on facet joints in sitting posture. The purpose of this study was to analyze the motion characteristics of lumbar facet joints and to observe the effect of weight-bearing on lumbar facet joints in 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 sitting position were collected without weight-bearing and weight-bearing 10kg, 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, and the relevant data of facet joinets 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 became smaller. the displacement of the right facet joint in the X axis and Y axis became larger, and the Z axis displacement became smaller. The rotation angle of bilateral facet joints also became smaller. In the L4/5 segment, after loading, the displacement of the X、Y、Z axis displacement of both sides becomes larger, while the rotation angle of α and β increases, while the rotation angle of γ decreases. In the L5/S1 segment, the displacement of the X、Y、Z axis on the left side becomes smaller. The displacement of the X、Y axis on the right side becomes smaller, while the displacement on the Z axis becomes larger. The rotation angle of α and γ becomes larger, and the rotation angle of the β axis becomes smaller. 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 the weight-bearing has no effect on the asymmetry of the motion.

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Kinematic Characteristics and Biomechanical Changes of Lower Lumbar Facet Joints Under Different Loads

Cited by 7 publications

References 23 publications

3D orientation and kinematic characteristics of zygapophyseal joints while sitting

3D orientation and kinematic characteristics of zygapophyseal joints while sitting

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

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

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