Parametric characterization of spinal motions in osteoporotic vertebral fracture at level T12 with fluoroscopy
Parametric characterization of spinal motions in osteoporotic vertebral fracture at level T12 with fluoroscopy
Vertebral fractures due to osteoporosis are a common skeletal disorder affecting the mobility of the patients, although little is known about the relationship between spinal kinematics and osteoporotic fracture. The purpose of this study was to characterize the motions of the thoracolumbar spine affected by osteoporotic vertebral fracture at level T12 and compare the results with those of non-fracture osteoporosis subjects. We examined the continuous segmental kinematics of the vertebrae, and describe the segmental motion of the spine when a fracture at T12 is present.
Fluoroscopy sequences of the thoracolumbar spines during sagittal and lateral flexion were collected from 16 subjects with osteoporosis of their spine (6 with vertebral fractures at T12, 10 without a fracture). Vertebrae T10–L2 in each frame of the sequences were landmarked. Kinematic parameters were calculated based on the landmarks and motion graphs were constructed. Compared to the control subjects who did not have a fracture, fracture subjects had a more asymmetric lateral range of motion (RoM) and required a longer time to complete certain phases of the motion cycle which are parameterized as lateral flexion ratio and percentage of motion cycle, respectively. Prolonged deflection was more frequently found from the fracture group. Characterizing the motions of the fractured vertebra together with its neighboring vertebrae with these kinematic parameters is useful in quantifying the dysfunction and may be a valuable aid to tracking progress of treatment.
spine kinematics, fluoroscopy, osteoporosis, vertebral fracture, motion analysis
346-355
Lam, Shing Chun Benny
6334eb0f-23ef-45fc-8ec7-2eed49736a1f
Allen, Robert
956a918f-278c-48ef-8e19-65aa463f199a
Pearson, Gill
acf7ca8f-3374-44f4-8bad-8a7f846d0d83
Cooper, Cyrus
e05f5612-b493-4273-9b71-9e0ce32bdad6
April 2009
Lam, Shing Chun Benny
6334eb0f-23ef-45fc-8ec7-2eed49736a1f
Allen, Robert
956a918f-278c-48ef-8e19-65aa463f199a
Pearson, Gill
acf7ca8f-3374-44f4-8bad-8a7f846d0d83
Cooper, Cyrus
e05f5612-b493-4273-9b71-9e0ce32bdad6
Lam, Shing Chun Benny, Allen, Robert, Pearson, Gill and Cooper, Cyrus
(2009)
Parametric characterization of spinal motions in osteoporotic vertebral fracture at level T12 with fluoroscopy.
Medical Engineering & Physics, 31 (3), .
(doi:10.1016/j.medengphy.2008.06.004).
Abstract
Vertebral fractures due to osteoporosis are a common skeletal disorder affecting the mobility of the patients, although little is known about the relationship between spinal kinematics and osteoporotic fracture. The purpose of this study was to characterize the motions of the thoracolumbar spine affected by osteoporotic vertebral fracture at level T12 and compare the results with those of non-fracture osteoporosis subjects. We examined the continuous segmental kinematics of the vertebrae, and describe the segmental motion of the spine when a fracture at T12 is present.
Fluoroscopy sequences of the thoracolumbar spines during sagittal and lateral flexion were collected from 16 subjects with osteoporosis of their spine (6 with vertebral fractures at T12, 10 without a fracture). Vertebrae T10–L2 in each frame of the sequences were landmarked. Kinematic parameters were calculated based on the landmarks and motion graphs were constructed. Compared to the control subjects who did not have a fracture, fracture subjects had a more asymmetric lateral range of motion (RoM) and required a longer time to complete certain phases of the motion cycle which are parameterized as lateral flexion ratio and percentage of motion cycle, respectively. Prolonged deflection was more frequently found from the fracture group. Characterizing the motions of the fractured vertebra together with its neighboring vertebrae with these kinematic parameters is useful in quantifying the dysfunction and may be a valuable aid to tracking progress of treatment.
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Published date: April 2009
Keywords:
spine kinematics, fluoroscopy, osteoporosis, vertebral fracture, motion analysis
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Local EPrints ID: 152531
URI: http://eprints.soton.ac.uk/id/eprint/152531
ISSN: 1350-4533
PURE UUID: 8a337d94-1a02-4dc3-b9cf-16ef280fefbb
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Date deposited: 14 May 2010 14:06
Last modified: 18 Mar 2024 02:44
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Author:
Shing Chun Benny Lam
Author:
Gill Pearson
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