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Related Experiment Video

Updated: Dec 4, 2025

Culture of Murine Embryonic Metatarsals: A Physiological Model of Endochondral Ossification
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The epiphyseal secondary ossification center: Evolution, development and function.

Meng Xie1, Andrei S Chagin2

  • 1Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.

Bone
|October 22, 2020
PubMed
Summary
This summary is machine-generated.

Pediatricians use bone age assessments to predict child growth by measuring secondary ossification centers (SOCs). This review explores the limited knowledge on SOC developmental biology, evolution, and function.

Keywords:
Cartilage canalChondrocytesDevelopmentEvolutionFunctionSecondary ossification center (SOC)

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Area of Science:

  • Pediatric endocrinology
  • Developmental biology
  • Skeletal biology

Background:

  • Bone age assessment is crucial for pediatricians to evaluate skeletal maturity and predict growth potential in children.
  • This assessment involves measuring secondary ossification centers (SOCs), which are cartilaginous structures at the ends of long bones that ossify with age.
  • Current understanding of the developmental biology, evolutionary origins, and functional significance of SOCs remains limited.

Purpose of the Study:

  • To review and summarize existing knowledge on the developmental biology, evolution, and functional roles of secondary ossification centers (SOCs).
  • To discuss potential primary functions of SOCs within the broader context of skeletal development and pediatric assessment.

Main Methods:

  • Literature review of existing studies on secondary ossification centers.
  • Synthesis of current knowledge regarding SOC development, evolution, and function.
  • Discussion of potential hypotheses for the primary roles of SOCs in skeletal maturation.

Main Results:

  • Secondary ossification centers (SOCs) are key indicators of skeletal maturity used in pediatric bone age assessments.
  • The developmental pathways, evolutionary history, and precise functions of SOCs are not yet fully elucidated.
  • Several potential functional roles for SOCs are proposed, requiring further investigation.

Conclusions:

  • Further research is needed to fully understand the developmental biology, evolution, and functional significance of secondary ossification centers (SOCs).
  • A comprehensive understanding of SOCs could enhance pediatric growth assessments and provide insights into skeletal development.