Pelvic Incidence: A Predictive Factor for Three-Dimensional Acetabular Orientation—A Preliminary Study
| Autor: | Jean Legaye, D. Prat-Pradal, Christine Tardieu, Jacques Pélissier, Gérard Bollini, Brigitte Chabrol, Christophe Boulay, Jean-Luc Jouve, G. Duval-Beaupere |
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| Rok vydání: | 2014 |
| Předmět: |
Orthodontics
medicine.medical_specialty Article Subject business.industry Pelvic incidence lcsh:Human anatomy General Medicine General Chemistry Acetabulum lcsh:QM1-695 Surgery Position (obstetrics) Tilt (optics) medicine.anatomical_structure Orientation (geometry) Orthopedic surgery medicine business Pelvis Research Article Incidence (geometry) |
| Zdroj: | Anatomy Research International, Vol 2014 (2014) Anatomy Research International |
| ISSN: | 2090-2751 2090-2743 |
| Popis: | Acetabular cup orientation (inclination and anteversion) is a fundamental topic in orthopaedics and depends on pelvis tilt (positional parameter) emphasising the notion of a safe range of pelvis tilt. The hypothesis was that pelvic incidence (morphologic parameter) could yield a more accurate and reliable assessment than pelvis tilt. The aim was to find out a predictive equation of acetabular 3D orientation parameters which were determined by pelvic incidence to include in the model. The second aim was to consider the asymmetry between the right and left acetabulae. Twelve pelvic anatomic specimens were measured with an electromagnetic Fastrak system (Polhemus Society) providing 3D position of anatomical landmarks to allow measurement of acetabular and pelvic parameters. Acetabulum and pelvis data were correlated by a Spearman matrix. A robust linear regression analysis provided prediction of acetabulum axes. The orientation of each acetabulum could be predicted by the incidence. The incidence is correlated with the morphology of acetabula. The asymmetry of the acetabular roof was correlated with pelvic incidence. This study allowed analysis of relationships of acetabular orientation and pelvic incidence. Pelvic incidence (morphologic parameter) could determine the safe range of pelvis tilt (positional parameter) for an individual and not a group. |
| Databáze: | OpenAIRE |
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