Bowlegs and knocks-knees are very common in children. Bowlegs are when the knees are curved out and space between the ankles is decreased. Bowlegs are also called genu varum. Knock-knee is when the knees are close together and space between the ankles is increased. Knock-knee is also called genu valgum.
Bowlegs in children under 2 is a normal part of development. You may notice the bowing getting worse by 18 months. However, the bowing will slowly improve starting around 18 months of age.
Starting around 2 or 2 ½ years of age, the leg alignment may start going in the other direction. Children can then become progressively knock-kneed. Knock-knees peaks at 3 or 3 ½ years of age. Around 6 or 7 years of age, you will notice normal leg alignment.
Diagnosis of Bowlegs & Knock-Knees
Pediatric
orthopedic surgeons at Riley at IU Health diagnose bowlegs and knock-knees
through physical examination. Depending on your child's age, the orthopedic
surgeon may also order X-rays. If the doctor feels that your child’s bowed legs
or knock-knees are a normal variation, no treatment is usually needed.
Depending on your child’s age, the surgeon may recommend follow-up to make sure
his or her leg alignment improves over time.
Treatments
Treatments
Older children with significant knock-knees or bowlegs may require surgery to correct their alignment. One of the most common surgery options is guided growth. Surgery stops the growth on one side of the bone allowing the other side to catch up. This allows the leg to straighten with your child’s natural growth. The doctor will discuss treatment options with you and your child.
Key Points to Remember
Key Points to Remember
- Bowlegs and knocks-knees are very common in children.
- Bowlegs are when the knees are curved out and space between the ankles is decreased.
- Knock-knee is when the knees are close together and space between the ankles is increased.
- A pediatric orthopedic surgeon can diagnose bowlegs and knock-knees through a physical exam and, sometimes, X-rays.
- Bowlegs and knock-knees typically improve around age 6 or 7. However, older children with significant knock-knees or bowlegs may require surgery to correct their alignment.
Support Services & Resources
Support Services & Resources
Visit the following online resources to learn more about bowlegs and knock-knees.
We offer a broad range of supportive services to make life better for families who choose us for their children's care.
The American Academy of Orthopaedic Surgeons provides more information about the causes, symptoms and treatment of bowed legs.
Locations
Locations
Locations
In addition to our primary hospital location at the Academic Health Center in Indianapolis, IN, we have convenient locations to better serve our communities throughout the state.