| Correlation of pelvic incidence with low- and high-grade isthmic spondylolisthesis. | |
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MedLine Citation:
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PMID: 12634563 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: The development of isthmic spondylolisthesis is influenced by forces across the lumbosacral region of the spine. Pelvic incidence is a radiographic parameter that has been shown to be an independent parameter that influences both sagittal spinal balance and pelvic orientation. Our hypothesis then is that there is a positive correlation between pelvic incidence and spondylolisthesis. STUDY DESIGN: A radiographic analysis of cases with spondylolisthesis. OBJECTIVES: To try to assess the correlation between pelvic incidence in both low-grade and high-grade spondylolisthesis in both a pediatric and an adult population. SUMMARY OF BACKGROUND DATA: The concept of pelvic incidence has been introduced into the literature. Its exact association with spondylolisthesis has not yet been clarified. METHODS: Forty patients with spondylolisthesis were identified and divided into two groups: low-grade (Meyerding I-II) and high-grade (Meyerding III and higher). Radiographic parameters measured included lumbar sagittal alignment (T12-S1), sacral inclination, slip angle, and pelvic incidence. The spondylolisthesis was classified according to the Meyerding-Newman classifications and the slip angle. Radiographic measurements were also done in two control groups; there were 20 pediatric and 20 adult controls (mean age 11.8 years and 60.0 years, respectively). Unpaired t test analysis and Pearson correlation analysis were then done. RESULTS: Mean pelvic incidence was 47.4 degrees in the pediatric control group, 57 degrees in the adult control group, 68.5 degrees in the low-grade isthmic spondylolisthesis group, and 79.0 degrees in the high-grade isthmic spondylolisthesis group. Pelvic incidence was found to be significantly higher in the high- and low-grade spondylolisthesis groups compared with both control groups (P = 0.0001). Pelvic incidence was significantly higher in the high-grade isthmic spondylolisthesis group than in the low-grade isthmic spondylolisthesis group (P = 0.007). A significant correlation existed between pelvic incidence and Meyerding-Newman scores (P = 0.03). CONCLUSIONS: Pelvic incidence was significantly higher in patients with low- and high-grade isthmic spondylolisthesis as compared with controls and had significant correlation with the Meyerding-Newman grades (P = 0.03). |
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Authors:
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Darrell S Hanson; Keith H Bridwell; John M Rhee; Lawrence G Lenke |
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Publication Detail:
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Type: Clinical Trial; Controlled Clinical Trial; Journal Article |
Journal Detail:
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Title: Spine Volume: 27 ISSN: 1528-1159 ISO Abbreviation: Spine Publication Date: 2002 Sep |
Date Detail:
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Created Date: 2003-03-13 Completed Date: 2003-03-26 Revised Date: 2009-07-09 |
Medline Journal Info:
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Nlm Unique ID: 7610646 Medline TA: Spine (Phila Pa 1976) Country: United States |
Other Details:
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Languages: eng Pagination: 2026-9 Citation Subset: IM |
Affiliation:
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Institute for Spinal Disorders, Houston, Texas, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Child Female Humans Lordosis / complications, radiography Lumbar Vertebrae / radiography Male Middle Aged Pelvis / radiography* Predictive Value of Tests Severity of Illness Index Spondylolisthesis / complications, radiography* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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