Difference in the acetabular cup orientation in standing and supine radiographs.
cross_sectional · Level IV
Where this comes from
- Record sourced from PubMed, PMID 27408490.
- Also identified by DOI 10.1016/j.jor.2016.03.012 and PMC identifier 4919313.
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Abstract
Acetabular orientation changes with that of the pelvis during lying and standing. This study was designed to measure these changes. We assessed 17 BHR replacements using EBRA software. The mean acetabular anteversion was more (p = 0.02) on erect than supine radiographs. Linear regression analysis showed that anteversion and inclination increased in some while decreased in others, and Bland and Altman analysis showed wide limits of agreement. The changes in acetabular orientation are thus subject to significant variations between the patients. We suggest studying the factors affecting acetabular orientation in standing to help reduce joint reaction forces and improve outcomes.
Anatomy
- pelvis
- hip