Knee Alignment Issues and Their Impact on Growth - Orthopedics

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Height issues


Hello, I am 15 years old, and I have recently noticed that my knees are slightly bowing outward.
Could you please tell me what the issue might be? Will it affect my height? Thank you!

Niming, 10~19 year old female. Ask Date: 2021/01/26

Dr. Shi Guozheng reply Orthopedics


The outward bending of the knee is due to external rotation of the femur, and it does not affect height.

Reply Date: 2021/01/26

More Info


Knee alignment issues, such as the outward angling of the knees, can be a common concern during growth periods, especially in adolescents. At 15 years old, your body is still undergoing significant changes, and it’s important to understand how these changes can affect your overall growth and development.

The condition you are describing, where the knees appear to angle outward, is often referred to as "genu varum" or bow-leggedness. This can occur for a variety of reasons, including genetics, developmental patterns, or even certain physical activities. In many cases, this alignment issue is a normal part of growth and may correct itself as you continue to grow.
To address your concern about whether this condition will impact your height, it’s important to note that the primary growth plates responsible for increasing height are located in the long bones, particularly in the femur (thigh bone) and tibia (shin bone), as well as in the vertebrae of the spine. The growth plates are areas of developing cartilage tissue near the ends of long bones, and they are where bone growth occurs.
If your growth plates are still open, which is likely at your age, you can still experience height increases. The alignment of your knees, in itself, does not directly affect the growth of these bones. However, if there are underlying issues such as significant joint problems or other skeletal abnormalities, these could potentially influence your growth patterns.
It’s also worth noting that knee alignment issues can sometimes lead to discomfort or pain, especially if they affect your gait or the way you move. If you are experiencing pain or if the alignment appears to worsen, it would be wise to consult with a healthcare professional, such as an orthopedic specialist. They can assess your knee alignment, check for any underlying issues, and provide guidance on whether any treatment or intervention is necessary.

In summary, while outward angling of the knees can be concerning, it is often a normal part of growth and development in adolescents. It is unlikely to affect your height significantly, especially if your growth plates are still open. However, if you have any pain or if the alignment issue is causing you concern, seeking professional advice is always a good step. Regular check-ups can help ensure that your growth and development are on track, and they can provide peace of mind as you navigate these changes in your body.

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