When a child stands with both legs straight, their knees may knock together?
Hello Dr.
Lee,
I would like to consult you about a skeletal development issue concerning my child.
My son was born on August 12, 1997, and he is currently in the third grade.
He is 128.5 cm tall and weighs approximately 30.5 kg.
He has a slight inward knee position.
About six months ago, he frequently complained of his legs feeling sore and painful.
I kept telling him that it might be growing pains and that it was nothing to worry about.
However, just yesterday, when I measured his height and asked him to stand straight, I noticed that his feet could not come together.
When he stands with his feet together, his knees cannot touch.
If he forces them together, his calves and feet become severely separated (it looks like a "Y" shape).
What should I do, Dr.
Lee?
Xiao pengyou mama, 30~39 year old female. Ask Date: 2005/08/19
Dr. Li Wenlin reply Orthopedics
Hello: In response to your question, based on your description, your child currently has what is referred to as "bow legs" or "genu varum," which means that when the knees are together, there is still a significant gap between the inner ankles, sometimes even allowing a fist to fit between them.
In fact, children's legs are typically in a "knock-kneed" or "genu valgum" position at birth, gradually evolving into bow legs by the age of three.
After the age of four or five, the appearance of bow legs usually improves and tends to resemble a slight outward bend similar to that of adults.
Your child also complains of aching pain in the feet; generally, simple bow legs and knock knees do not present with symptoms, only an unusual appearance and gait.
I recommend that you consult an orthopedic specialist for an examination.
In most cases, this is often associated with growing pains and does not require special treatment.
Wishing you all the best.
Reply Date: 2005/08/19
More Info
When it comes to bow legs in children, particularly in your son's case, it's important to understand the normal developmental patterns and when to seek further evaluation from an orthopedic specialist. Bow legs, or genu varum, are common in infants and toddlers as their bones are still developing. However, as children grow, most will naturally outgrow this condition.
In your son's case, given that he is now in the third grade and has been experiencing discomfort in his legs, it is essential to assess the situation more closely. The fact that he is experiencing pain and that his knees cannot come together while standing straight is concerning. This could indicate a more significant issue that may require intervention.
Understanding Bow Legs
1. Normal Development: Bow legs are typically seen in infants and toddlers. As they grow, their legs usually straighten out. By the age of 3, most children have legs that are relatively straight. If bowing persists beyond this age, it may warrant further investigation.
2. Potential Causes: Persistent bow legs can be due to several factors, including:
- Physiological Bowing: This is common and usually resolves on its own.
- Blount's Disease: A condition that affects the growth plates in the knee, leading to progressive bowing.
- Rickets: A vitamin D deficiency that can lead to softening of the bones and bowing.
- Genetic Conditions: Some genetic disorders can affect bone development.
When to Seek Orthopedic Help
Given your son's symptoms, here are some indicators that suggest it may be time to consult an orthopedic specialist:
- Persistent Symptoms: If your son has been experiencing leg pain consistently, especially if it's affecting his daily activities or causing him distress.
- Progressive Deformity: If the bowing appears to be worsening or if his ability to stand or walk is compromised.
- Age Consideration: Since he is now older than the typical age for bow legs to resolve, further evaluation is warranted.
- Physical Examination Findings: If a physical examination reveals significant discrepancies in leg alignment or if there are concerns about joint function.
What to Expect at the Orthopedic Appointment
During the orthopedic evaluation, the doctor will likely perform a thorough physical examination and may order imaging studies such as X-rays to assess the alignment of the bones and joints. They will look for any underlying conditions that may be contributing to the bowing and pain.
Treatment Options
If the orthopedic specialist determines that intervention is necessary, treatment options may include:
- Observation: In some cases, if the bowing is mild and not causing significant issues, the doctor may recommend simply monitoring the situation.
- Bracing: For conditions like Blount's disease, a brace may be used to help correct the alignment.
- Physical Therapy: Strengthening exercises may be recommended to improve muscle support around the knees and legs.
- Surgery: In more severe cases or if conservative treatments do not yield improvement, surgical options may be considered to correct the alignment.
Conclusion
In summary, while bow legs can be a normal part of childhood development, your son's persistent pain and inability to align his knees warrant further investigation. Seeking an evaluation from an orthopedic specialist will provide clarity on the best course of action and ensure that any underlying issues are addressed promptly. Early intervention can lead to better outcomes, so it is advisable to schedule an appointment as soon as possible.
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