Chapter 15, The Spine, reflects significant refinement of the process of spinal impairment assessment. As with any change there will be questions on how these ratings are performed compared to the Fourth Edition. The purpose of these questions and answers are to provide further clarity and to correct some minor errors that appeared in the first printing of the Fifth Edition.


Is Loss of Motion Segment Integrity: Translation now measured on single film as illustrated in Figure 15-3a (5th ed, 378), or is it now necessary to measure lumbar motion segment integrity with dynamic (flexion and extension) views as discussed in the text?


Figures 15-3a, b, and c contain erroneous illustrations. Figures 15-3a and Figure 15-3c should demonstrate both flexion and extension views. Figure 15-33b should indicate the flexion angle of +8°. Both flexion and extension...

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