Epiphyseal plate
Epiphyseal Plate: The Growth Plate of Bones[edit | edit source]
The Epiphyseal Plate, commonly known as the growth plate, is a vital anatomical structure in the bones of growing organisms. It is a sheet of hyaline cartilage located in the metaphysis at each end of a long bone.
Definition and Function[edit | edit source]
The epiphyseal plate plays a crucial role in bone growth, particularly in lengthening the bone during childhood and adolescence. This cartilage plate allows for the continual addition of new cells, which are gradually ossified, contributing to bone growth.
Structure and Composition[edit | edit source]
Composed predominantly of hyaline cartilage, the epiphyseal plate is organized into zones, each with a specific role in bone growth and development. These zones include the resting zone, proliferative zone, hypertrophic zone, calcification zone, and ossification zone.
Growth and Development[edit | edit source]
Growth in bone length is achieved through the proliferation and maturation of chondrocytes (cartilage cells) within the epiphyseal plate. As growth concludes, typically during late adolescence, the epiphyseal plate undergoes a process called epiphyseal closure, where it is replaced by bone tissue, forming the epiphyseal line.
Clinical Significance[edit | edit source]
- Disorders and Injuries ###
Injuries or disorders affecting the epiphyseal plate, such as fractures, can have significant implications on bone growth and development. These conditions require careful management to prevent growth disturbances or deformities.
- Medical Imaging ###
Medical imaging, including X-rays, is crucial in evaluating the health and development of the epiphyseal plate, especially in pediatric orthopedics.
Epidemiology[edit | edit source]
Epiphyseal plate-related conditions predominantly affect children and adolescents, as these are the primary periods of bone growth.
See Also[edit | edit source]
References[edit | edit source]
External Links[edit | edit source]
- American Academy of Orthopaedic Surgeons - Growth Plate Injuries
- Royal Children's Hospital Melbourne - Growth Plate Injuries
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Contributors: Prab R. Tumpati, MD
