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Correlation of pelvic incidence with radiographical parameters for acetabular retroversion: a retrospective radiological study
- Source :
- BMC Medical Imaging
- Publication Year :
- 2014
-
Abstract
- Background Pelvic incidence (PI) has been linked to several degenerative processes within the spinopelvic system. Acetabular retroversion is a recognised risk factor for osteoarthritis of the hip. We therefore hypothesised that these two factors might be part of a specific anatomical variant associated with degenerative changes. This study was performed to clarify this issue. Methods The pelvic incidence was measured on 589 computertomographical data sets acquired between 2008 and 2010. For 220 patients a 2D rendering in an antero-posterior view of the CT data set was performed to evaluate the parameters of acetabular retroversion. Those included the prominence of the ischial spine sign (PRISS), the cross-over sign (COS) and the posterior wall sign (PWS). Between 477 and 478 hips were evaluated depending on the parameter of retroversion. Results The mean pelvic incidence was significantly lower in hips positive for the PRISS and the PWS. However, there were no significant differences between hips positive or negative for the COS. Discussion As hypothesised, the lower PI values in PWS and PRISS positive hips suggest a link between PI and retroversion of the acetabulum. Whether this is of any clinical relevance remains, however, unknown. Conclusion Acetabular retroversion is linked to PI. In hips where the prominence of the ischial spine sign and/or the posterior wall sign was present, the mean pelvic incidence value was lower.
- Subjects :
- musculoskeletal diseases
Adult
Male
medicine.medical_specialty
Pelvic incidence
Adolescent
Cross-over sign
Radiography
PRISS
610 Medicine & health
Osteoarthritis
Bone Retroversion
Young Adult
Risk Factors
Medicine
2741 Radiology, Nuclear Medicine and Imaging
Humans
Radiology, Nuclear Medicine and imaging
COS
Risk factor
Aged
Retrospective Studies
Aged, 80 and over
Hip
business.industry
10042 Clinic for Diagnostic and Interventional Radiology
Incidence (epidemiology)
Incidence
Posterior wall sign
PWS
Retrospective cohort study
Acetabulum
Middle Aged
medicine.disease
Spine
Prominence of the ischial spine sign
10021 Department of Trauma Surgery
Radiology Nuclear Medicine and imaging
Radiological weapon
Female
Radiology
Acetabular retroversion
business
Research Article
Subjects
Details
- ISSN :
- 14712342
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- BMC medical imaging
- Accession number :
- edsair.doi.dedup.....a96f31cab8d3428f3ea1bf915cb49b9b