2011
DOI: 10.1007/s00586-011-1926-z
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Lumbo-pelvic lordosis and the pelvic radius technique in the assessment of spinal sagittal balance: strengths and caveats

Abstract: Introduction The two main methodologies described for the assessment of spinal sagittal alignment are the pelvic radius (PR) technique and that based on measures of the Pelvic Incidence (PI) and Spino-Sacral Angle (SSA). Both methods stress the fundamental relationship between the anatomical position and orientation of the sacrum within the pelvis and the spinal curves above. The aim of the current study was to assess the strengths and potential weaknesses of the PR technique. The PR technique uses measures ba… Show more

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Cited by 11 publications
(9 citation statements)
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“…Few studies have examined methods for predicting the lumbar lordosis in lumbar corrective surgery [3,18,24,27,29,33,36]. Of these, the main subjects were Caucasians.…”
Section: Introductionmentioning
confidence: 99%
“…Few studies have examined methods for predicting the lumbar lordosis in lumbar corrective surgery [3,18,24,27,29,33,36]. Of these, the main subjects were Caucasians.…”
Section: Introductionmentioning
confidence: 99%
“…Geometrically, PR-T12 is the sum of PR-S1 and T12–S1. Its value is in a relatively narrow range in healthy individuals, about 90°±10° 18) . Thus, the total lumbopelvic lordosis decreases when the PR-S1 increases, and vice versa.…”
Section: Discussionmentioning
confidence: 97%
“…Using PI and SVA methods, clear visualization of the S1 endplate and the C7 vertebra is essential. But according to reports, the C7 vertebrae can be clearly identified on the whole spine lateral radiographs only in about half of the cases 18) . Our study also found that the C7 vertebrae could not be fully visualized in most patients.…”
Section: Discussionmentioning
confidence: 97%
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