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Related Experiment Video

Updated: Jun 12, 2025

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
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Acetabular morphology variations in a Hispanic population.

Norberto J Torres-Lugo1, Danny Mangual-Perez2, David Deliz-Jimenez1

  • 1Department of Orthopaedic Surgery, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico.

Acta Radiologica (Stockholm, Sweden : 1987)
|September 19, 2024
PubMed
Summary

Hispanic men show less posterior acetabular coverage, potentially impacting hip conditions. This study details acetabular bony anatomy variations in this population, crucial for understanding hip dysplasia and femoroacetabular impingement.

Keywords:
Hipadultsanatomycomputed tomographynormal variants

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Area of Science:

  • Orthopedic surgery
  • Radiology
  • Human anatomy

Background:

  • Hip rotational abnormalities are linked to hip dysplasia, osteoarthritis, and femoroacetabular impingement.
  • Existing research on hip morphology lacks data on variations within the Hispanic population.

Purpose of the Study:

  • To characterize the bony anatomical variations of the acetabulum specifically within a Hispanic demographic.

Main Methods:

  • A cross-sectional analysis of 182 pelvic CT scans from patients over 21 years old (excluding hip fractures).
  • Measurements included acetabular version, anterior and posterior acetabular sector angles (AASA/PASA), and horizontal acetabular sector angles (HASA).
  • Acetabular variations were correlated with patient sex and weight.

Main Results:

  • Women exhibited significantly greater mean acetabular anteversion and posterior acetabular sector angle (PASA) compared to men.
  • Men demonstrated a larger anterior acetabular sector angle (AASA) than women.
  • Underweight individuals had smaller PASA and horizontal acetabular sector angles (HASA) compared to normal-weight individuals.

Conclusions:

  • The acetabular morphology in the Hispanic population is broadly consistent with other reported groups.
  • A notable finding is reduced posterior acetabular wall coverage of the femoral head in Hispanic men versus women.
  • These anatomical differences are significant for the clinical management and surgical strategies for conditions like femoroacetabular impingement and hip dysplasia.