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The skeleton is subdivided into two major divisions—the axial skeleton and the appendicular skeleton. The axial skeleton forms the vertical, central axis of the body. It includes all of the bones of the head, neck, chest, and back. It protects the brain, spinal cord, heart, and lungs. It also serves as the attachment site for muscles that move the head, neck, and back and for muscles that act across the shoulder and hip joints to move their corresponding limbs.
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The Immature Pediatric Appendicular Skeleton.

Jie C Nguyen1,2, Dennis Caine3

  • 1Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.

Seminars in Musculoskeletal Radiology
|July 29, 2024
PubMed
Summary
This summary is machine-generated.

This study details the growth plate complex, its normal structure, and common injuries in immature skeletons. Understanding these patterns aids in early intervention for growth disturbances and fractures.

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Area of Science:

  • Pediatric Orthopedics
  • Skeletal Biology
  • Radiology

Background:

  • The immature appendicular skeleton relies on endochondral ossification in long bones and growth plates.
  • Growth plate complexes are vulnerable to acute and overuse injuries.
  • Understanding normal histoanatomy is crucial for diagnosing abnormalities.

Purpose of the Study:

  • To describe the normal histoanatomy and physiology of the growth plate complex.
  • To outline imaging considerations for normal and abnormal growth.
  • To review classifications and examples of acute and overuse injuries.

Main Methods:

  • Histological and physiological review of growth plate components.
  • Discussion of imaging features of normal and abnormal growth.
  • Classification and examples of Salter-Harris fractures and overuse injuries.

Main Results:

  • Detailed description of the physis proper, subjacent vascularity, and ossification front.
  • Identification of characteristic imaging findings for growth plate abnormalities.
  • Examples of injuries to epiphyseal, apophyseal, and secondary growth plates.

Conclusions:

  • A foundational understanding of growth plate structure and injury patterns is essential.
  • This knowledge facilitates anticipation of complications and growth disturbances.
  • Optimal follow-up and early, less invasive intervention are enabled by this framework.