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Related Concept Videos

Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the neck...
Anatomical Positions01:11

Anatomical Positions

In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
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Abdominal Regions and Quadrants01:19

Abdominal Regions and Quadrants

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Inclination of a Line01:25

Inclination of a Line

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Herniated Intervertebral Disc l: Introduction

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Articulations of the Vertebral Column

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Related Experiment Videos

Relationship between sacral pelvic incidence and acetabular orientation.

Jean Legaye1, Ginette Duval-Beaupere, Andre Barrau

  • 1Unity INSERM 215, Spinal Bio-mechanic, Garches, France. jean.legaye@uclouvain.be

Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
|February 1, 2011
PubMed
Summary

Sacral pelvic incidence (SPI) influences acetabular orientation, impacting hip arthroplasty. Understanding this relationship aids in precise acetabular cup placement for better pelvi-spinal balance.

Related Experiment Videos

Area of Science:

  • Orthopedic surgery
  • Biomechanical engineering
  • Anatomy

Background:

  • Sacral pelvic incidence (SPI) is crucial for sagittal spinal curvature.
  • Individual pelvic variations necessitate understanding their impact on hip joint biomechanics.

Purpose of the Study:

  • To investigate the relationship between sacral pelvic incidence (SPI) and acetabular orientation.
  • To identify key pelvic parameters influencing acetabular positioning.

Main Methods:

  • Analysis of 51 adult anatomical pelvises (26 female, 25 male) using 3D coordinates.
  • Defined and calculated 10 angular and 11 linear parameters relative to Lewinnek's anterior pelvic plane.
  • Evaluated parameters in absolute values and relative to acetabular rays.

Main Results:

  • Sacral slope and V pubic angle were dominant parameters.
  • Acetabular tilting correlated with sacral slope and SPI.
  • Acetabular anteversion was linked to V pubic angle via the angle of prow.

Conclusions:

  • Acetabular orientation is significantly influenced by SPI and related pelvic parameters.
  • Acetabular cup positioning in total hip arthroplasty should consider these anatomical parameters and overall pelvi-spinal sagittal balance.