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Kinematic analysis and simulation of vertebral motion under static load-part II: simulation study. 1982

A G Patwardhan, and A H Soni, and J A Sullivan, and M R Gudavalli, and V Srinivasan

Based on the earlier work by the author on the development of a theoretical motion simulation model of an open-loop, kinematic chain, the present paper examines the motion characteristics of a human spine motion-segment. Based on the experimental data collected from the human spine cadaver specimens of lumbar spine, a static simulation model of a lumbar segment is proposed. The equivalent motion characteristic of the intervertebral joint is described by a spherical pair which is located for an intervertebral joint by fitting in a least-square sense a cone to a set of motion data describing the axode characteristics of the joint. The intervertebral disk and the ligaments are represented by an equivalent stiffness matrix whose elements are assumed to be constant over the entire range of mobility. The proposed model showed a good agreement with the observed motion data of an intervertebral joint.

UI MeSH Term Description Entries
D007403 Intervertebral Disc Any of the 23 plates of fibrocartilage found between the bodies of adjacent VERTEBRAE. Disk, Intervertebral,Intervertebral Disk,Disc, Intervertebral,Discs, Intervertebral,Disks, Intervertebral,Intervertebral Discs,Intervertebral Disks
D008159 Lumbar Vertebrae VERTEBRAE in the region of the lower BACK below the THORACIC VERTEBRAE and above the SACRAL VERTEBRAE. Vertebrae, Lumbar
D008954 Models, Biological Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment. Biological Model,Biological Models,Model, Biological,Models, Biologic,Biologic Model,Biologic Models,Model, Biologic
D009038 Motion Physical motion, i.e., a change in position of a body or subject as a result of an external force. It is distinguished from MOVEMENT, a process resulting from biological activity. Motions
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013314 Stress, Mechanical A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area. Mechanical Stress,Mechanical Stresses,Stresses, Mechanical
D014159 Transducers Any device or element which converts an input signal into an output signal of a different form. Examples include the microphone, phonographic pickup, loudspeaker, barometer, photoelectric cell, automobile horn, doorbell, and underwater sound transducer. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed) Transducer

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