Tillväxtben

Tillväxtben is a Swedish term that translates to "growth bone" or "growing bone." It refers to any bone that is still undergoing development and lengthening in a young organism, typically a child or adolescent. These bones are characterized by the presence of epiphyseal plates, also known as growth plates. These are areas of cartilage located near the ends of long bones where new bone tissue is formed, allowing the bone to increase in length.

The process of bone growth at the epiphyseal plates is a complex biological mechanism involving the division, maturation, and mineralization of cartilage cells. Hormones, particularly growth hormone, play a crucial role in regulating this process. As an individual matures, the cartilage in the epiphyseal plates gradually ossifies, meaning it turns into bone. Once this ossification is complete, the growth plates close, and the bone stops growing in length.

Understanding tillväxtben is important in pediatric orthopedics and radiology. Fractures that occur through the epiphyseal plate, known as Salter-Harris fractures, can have implications for future bone growth and may require specific management to prevent deformities. The timing of epiphyseal plate closure also serves as an indicator of skeletal maturity. Imaging techniques are used to assess the status of these growth zones.