Correlation between radiographic measures of acetabular morphology with 3D femoral head coverage in patients with acetabular retroversion.

Acta Orthopaedica
Benjamin J HansenAndrew A Anderson

Abstract

Acetabular retroversion may result in anterior acetabular over-coverage and posterior deficiency. It is unclear how standard radiographic measures of retroversion relate to measurements from 3D models, generated from volumetric CT data. We sought to: (1) compare 2D radiographic measurements between patients with acetabular retroversion and normal control subjects, (2) compare 3D measurements of total and regional femoral head coverage between patients and controls, and (3) quantify relationships between radiographic measurements of acetabular retroversion to total and regional coverage of the femoral head. For 16 patients and 18 controls we measured the extrusion index, crossover ratio, acetabular angle, acetabular index, lateral center edge angle, and a new measurement termed the "posterior wall distance". 3D femoral coverage was determined from volumetric CT data using objectively defined acetabular rim projections, head-neck junctions, and 4 anatomic regions. For radiographic measurements, intra-observer and inter-observer reliabilities were evaluated and associations between 2D radiographic and 3D model-based measures were determined. Compared to control subjects, patients with acetabular retroversion had a negative posteri...Continue Reading

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Citations

Mar 1, 2013·Journal of Biomechanical Engineering·Corinne R HenakJeffrey A Weiss
Mar 25, 2016·Journal of Hip Preservation Surgery·Joey A HansonStephen K Aoki
Jun 25, 2013·Osteoarthritis and Cartilage·C R HenakJ A Weiss
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Sep 8, 2016·Clinical Orthopaedics and Related Research·Lucas A AndersonChristopher L Peters
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Oct 17, 2012·Clinical Orthopaedics and Related Research·Shafagh MonazzamHarish Hosalkar
Nov 10, 2016·Journal of Hip Preservation Surgery·Zachary R AshwellOmer Mei-Dan
Nov 23, 2019·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Keisuke UemuraAndrew E Anderson
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Jun 20, 2020·AJR. American Journal of Roentgenology·Yusuke KuboYasuharu Nakashima
Apr 4, 2021·Clinical Biomechanics·Brecca M M GaffneyMichael D Harris

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