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Assessment of Patients With Low-Back Pain by Biplanar Radiographic Measurement of Intervertebral Motion
Journal article   Peer reviewed

Assessment of Patients With Low-Back Pain by Biplanar Radiographic Measurement of Intervertebral Motion

I A F STOKES, D G WILDER, J W FRYMOYER and M H POPE
Spine (Philadelphia, Pa. 1976), Vol.6(3), pp.233-240
05/1981
DOI: 10.1097/00007632-198105000-00005
PMID: 6455745

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Abstract

Abnormalities of intervertebral joint motion including hypermobility, reduced mobility, torsional abnormality, and displacement of the center of rotation have been associated with degenerative change. However, measurement of these signs in plane X-ray films is handicapped by the three-dimensional motion and geometry of the spine. This study aimed to relate three-dimensional motion of the joints to their pathological state. We have used biplanar radiography to measure intervertebral motion during voluntary movements by patients with low back pain. Primary (or intentional) and coupled motions were measured by a refined technique, along with disc shear and facet joint motion. Abnormalities were found, especially in the "coupled" motions which were related to narrowed disc space, and to proximity to previous fusions. There was asymmetry of motion specific to joints with herniated nucleus pulposus.

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