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Measuring leg-length discrepancy by the “iliac crest palpation and book correction” method: Reliability and validity Edwin Hanada, MD, R.Lee Kirby, MD, Michael Mitchell, MD, Janneke M. Swuste, BSc Archives of Physical Medicine and Rehabilitation Volume 82, Issue 7, Pages (July 2001) DOI: /apmr Copyright © 2001 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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Fig. 1 The ICP procedure. Archives of Physical Medicine and Rehabilitation , DOI: ( /apmr ) Copyright © 2001 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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Fig. 2 Determining the extent of the LLD by measuring the thickness of the book correction needed to level the iliac crests. Archives of Physical Medicine and Rehabilitation , DOI: ( /apmr ) Copyright © 2001 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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Fig. 3 Intrarater reliability (n = 19). The first and second measurements by examiner 1 are plotted. Archives of Physical Medicine and Rehabilitation , DOI: ( /apmr ) Copyright © 2001 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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Fig. 4 Interrater reliability (n = 18). The measurements of the 2 examiners are plotted. Archives of Physical Medicine and Rehabilitation , DOI: ( /apmr ) Copyright © 2001 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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Fig. 5 Construct validity (n = 30). The extent of the LLD measured by the ICPBC method is plotted against the extent of the induced LLD. Archives of Physical Medicine and Rehabilitation , DOI: ( /apmr ) Copyright © 2001 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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Fig. 6 Concurrent validity (n = 14). The extent of the LLD measured by the ICPBC method is plotted against the radiologic measurement of the LLD. Archives of Physical Medicine and Rehabilitation , DOI: ( /apmr ) Copyright © 2001 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
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