A New Technique for Digital Fluoroscopic Video Assessment of Sagittal Plane Lumbar Spine Motion

Teyhen, Deydre S.; Flynn, Timothy W.; Bovik, Alan C.; Abraham, Lawrence D.

doi:10.1097/01.brs.0000170589.47555.c6

Cited by 46 publications

(47 citation statements)

References 48 publications

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“…Some studies assessed intervertebral motion only in a few segments (e.g. L3 to S1) [27,32,33,42,43] and some There are some studies which used camera to capture images from monitor of analog fluoroscopy system [30,31]. In this improved study, flexion and extension movements of lumbar spine were investigated in vivo by DVF.…”

Section: Discussionmentioning

confidence: 99%

“…Lumbar motion kinematics has been evaluated by a variety of instruments-from functional radiography [8,9,12,13,26,40,41] to cineradiography [42,43] and videofluoroscopy [27,[30][31][32][33][34][35]44]-in both normal and patient subjects. Some studies assessed intervertebral motion only in a few segments (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…After resting and walking for 5 min, subjects were reimaged for test-retest reliability (interimage reliability). Teyhen et al [33] used a lead harness to improve the quality of the image and to prevent ''white-out'' during flexion. In this study, the special lead harness was designed and placed on the back of each subject which did not limit their ROM Results for independent t-tests between two groups show no significant difference a Sagittal range of motion of lumbar region which was computed from digital fluoroscopy because of its axis of rotation and could bend freely in flexion and extension of lumbar spine ( Fig.…”

Section: Collection Of Dvfmentioning

confidence: 99%

“…Digital video fluoroscopy (DVF) has been suggested as a tool for reliably evaluating normal and abnormal lumbar motions in vivo [1,27,[30][31][32][33][34][35] and it seems that DVF is capable of identifying functional abnormalities in patients with LSI who have no structural abnormalities detectable by X-ray. Hence, the aim of this study was to develop a reliable measurement technique that would allow for the assessment of sagittal plane lumbar spine kinematics using digital video fluoroscopy in a group of patients diagnosed having LSI and a control group.…”

Section: Introductionmentioning

confidence: 99%

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Kinematic analysis of dynamic lumbar motion in patients with lumbar segmental instability using digital videofluoroscopy

et al. 2009

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The study design is a prospective, case-control. The aim of this study was to develop a reliable measurement technique for the assessment of lumbar spine kinematics using digital video fluoroscopy in a group of patients with low back pain (LBP) and a control group. Lumbar segmental instability (LSI) is one subgroup of nonspecific LBP the diagnosis of which has not been clarified. The diagnosis of LSI has traditionally relied on the use of lateral functional (flexion-extension) radiographs but use of this method has proven unsatisfactory. Fifteen patients with chronic low back pain suspected to have LSI and 15 matched healthy subjects were recruited. Pulsed digital videofluoroscopy was used to investigate kinematics of lumbar motion segments during flexion and extension movements in vivo. Intersegmental linear translation and angular displacement, and pathway of instantaneous center of rotation (PICR) were calculated for each lumbar motion segment. Movement pattern of lumbar spine between two groups and during the full sagittal plane range of motion were analyzed using ANOVA with repeated measures design. Intersegmental linear translation was significantly higher in patients during both flexion and extension movements at L5-S1 segment (p \ 0.05). Arc length of PICR was significantly higher in patients for L1-L2 and L5-S1 motion segments during extension movement (p \ 0.05). This study determined some kinematic differences between two groups during the full range of lumbar spine. Devices, such as digital videofluoroscopy can assist in identifying better criteria for diagnosis of LSI in otherwise nonspecific low back pain patients in hope of providing more specific treatment.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Collection Of Dvfmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Kinematic analysis of dynamic lumbar motion in patients with lumbar segmental instability using digital videofluoroscopy

et al. 2009

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“…Dynamic motion measures of spine stiffness (or laxity) that change in a predictable way with disc degeneration, injury or disease might be helpful in detecting critical levels of biomechanical failure if efficient and safe in vivo measurement methods are developed. Although current technology does not allow routine measurement of force during motion, methods of quantifying dynamic motion are improving (De Stefano et al;, Teyhen et al, 2005. It is plausible that clinical kinematic data (for example from videofluoroscopy studies) can be combined with calculated loads to generate in vivo load-displacement curves.…”

Section: Discussionmentioning

confidence: 99%

The effect of loading rate and degeneration on neutral region motion in human cadaveric lumbar motion segments

Ilharreborde

Zhao

Boumediene

et al. 2008

Clinical Biomechanics

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Background-The quasistatic neutral zone is a surrogate for neutral region stiffness of spinal motion segments. No similar measure of dynamic stiffness has been validated. Because parameters related to stiffness are likely to be affected by loading rate and disc degeneration, we examined the effect of those factors on motion parameters derived from continuous motion data. Methods-Fifteenhuman lumbar motion segments were tested with continuous flexion-extension pure moments at 0.5, 3.0 and 6.0 degrees/second. Range of motion, width of the hysteresis loop, transitional zone width, and slopes of the upper and lower arms of the hysteresis loop within the transitional zone were measured. Discs were then graded for degeneration.Findings-As the loading rate increased from 0.5 to 6.0 degree/second there were significant increases in ROM, hysteresis area, hysteresis loop width, and the upper and lower transitional zone slopes. At the same time transitional zone width decreased significantly. Degeneration had a significant effect on all parameters except hysteresis loop width. The transition zone slopes appeared to best discriminate between normal and degenerative discs.Interpretation-Loading rate had a significant effect on all parameters. As degeneration increased consistent effects were observed indicating decreasing stiffness from grade 1 to grade 3 then slightly increased stiffness in grade 4 specimens. The slopes of the transitional zone have potential to be a useful measure of neutral region stiffness during dynamic motion testing.

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Semi-automatic Method for Intervertebral Kinematics Measurement in the Cervical Spine

et al. 2017

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A New Technique for Digital Fluoroscopic Video Assessment of Sagittal Plane Lumbar Spine Motion

Abstract: Enhanced DFV combined with a DCRA resulted in reliable assessment of lumbar spine kinematics. The error values associated with this technique were low and were comparable to published error measurements obtained when using a similar algorithm on hand-drawn outlines from static radiographs.

Cited by 46 publications

References 48 publications

Kinematic analysis of dynamic lumbar motion in patients with lumbar segmental instability using digital videofluoroscopy

Kinematic analysis of dynamic lumbar motion in patients with lumbar segmental instability using digital videofluoroscopy

The effect of loading rate and degeneration on neutral region motion in human cadaveric lumbar motion segments

Semi-automatic Method for Intervertebral Kinematics Measurement in the Cervical Spine

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