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  • Title: [Disc degeneration and cervical instability].
    Author: Dai L.
    Journal: Zhonghua Wai Ke Za Zhi; 1999 Mar; 37(3):180-2. PubMed ID: 11829816.
    Abstract:
    OBJECTIVE: To evaluate disc degeneration and segmental instability in the cervical spine by comparing the magnetic resonance imaging assessment of disc degeneration with conventional plain radiographic evaluation with cervical segmental instability. METHODS: Two hundred sixty consecutive patients with suspected cervical spine disorders were analyzed for horizontal and angular displacements on lateral flexion and extension radiographs and disc degeneration on T(2)-weighted magnetic resonance images of the cervical vertebrae. RESULTS: In all intervertebral levels, the grade of disc degeneration increased significantly (P < 0.01) with age. Cervical instability was identified in 151 segments (14.5%) and correlated with Grade 1 and Grade 2 degeneration in the intervertebral discs (P < 0.01). CONCLUSIONS: Cervical segmental instability may indicate early degeneration of intervertebral disc in the cervical vertebrae.
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