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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...
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The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...

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Related Experiment Video

Updated: May 30, 2026

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
09:51

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

Published on: September 7, 2022

Acetabular deficiency in spastic hip subluxation.

Chia Hsieh Chang1, Ken N Kuo, Chao Jan Wang

  • 1Department of Pediatric Orthopaedics, Chang Gung Memorial Hospital, Chang Gung University, Taipei, Taiwan.

Journal of Pediatric Orthopedics
|August 16, 2011
PubMed
Summary

Acetabular dysplasia in spastic hip subluxation is global, with greater deficiency in the anterior aspect. This finding is crucial for selecting appropriate acetabuloplasty methods in children with spastic cerebral palsy.

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In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
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In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy

Published on: July 2, 2021

Related Experiment Videos

Last Updated: May 30, 2026

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
09:51

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

Published on: September 7, 2022

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
07:43

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy

Published on: July 2, 2021

Area of Science:

  • Orthopedics
  • Pediatric Orthopedics
  • Radiology

Background:

  • Spastic hip subluxation is commonly posterolateral.
  • The precise location of acetabular deficiency remains debated.
  • Accurate definition is key for surgical planning.

Purpose of the Study:

  • To determine the degree and location of acetabular deficiency in spastic hip subluxation.
  • To inform the selection of acetabuloplasty techniques.

Main Methods:

  • 3D CT scans of the pelvis were analyzed in 25 children with spastic cerebral palsy.
  • Pelvic CT images were realigned, and acetabular indexes were measured across 9 planes.
  • Data from 5 healthy children served as controls.

Main Results:

  • Spastic non-subluxated hips showed normal CT acetabular indexes.
  • Spastic subluxated hips exhibited significant acetabular index differences compared to normal hips.
  • Deficiency was most pronounced in the anterior acetabular regions.

Conclusions:

  • Acetabular dysplasia in spastic hip subluxation is a global condition.
  • The anterior aspect of the acetabulum demonstrates the greatest degree of deficiency.
  • Findings aid in understanding pathology and guiding surgical interventions.