What is the definition of Bowlegs?

Bowlegs is a condition in which the knees stay wide apart when a person stands with the feet and ankles together. It is considered normal in children under 18 months.

What are the alternative names for Bowlegs?

Genu varum

What are the causes for Bowlegs?

Infants are born bowlegged because of their folded position in the mother's womb. Bowed legs begin to straighten once the child starts to walk and the legs begin to bear weight (about 12 to 18 months old).

By around age 3, the child can most often stand with the ankles apart and the knees just touching. If the bowed legs are still present, the child is called bowlegged.

Bowlegs may be caused by illnesses, such as:

  • Abnormal bone development
  • Blount disease
  • Fractures that do not heal correctly
  • Lead or fluoride poisoning
  • Rickets, which is caused by a lack of vitamin D

What are the symptoms for Bowlegs?

Symptoms may include:

  • Knees that do not touch when standing with feet together (ankles touching)
  • Bowing of legs is same on both sides of the body (symmetrical)
  • Bowed legs continue beyond age 3

What are the current treatments for Bowlegs?

No treatment is recommended for bowlegs unless the condition is extreme. The child should be seen by the provider at least every 6 months.

Special shoes, braces, or casts can be tried if the condition is severe or the child also has another disease. It is unclear how well these work.

At times, surgery is done to correct the deformity in an adolescent with severe bowlegs.

What is the outlook (prognosis) for Bowlegs?

In many cases the outcome is good, and there is most often no problem walking.

What are the possible complications for Bowlegs?

Bowlegs that does not go away and is not treated may lead to arthritis in the knees or hips over time.

When should I contact a medical professional for Bowlegs?

Call your provider if your child shows ongoing or worsening bowed legs after age 3.

How do I prevent Bowlegs?

There is no known way to prevent bowlegs, other than to avoid rickets. Make sure your child is exposed to sunlight and gets the proper amount of vitamin D in their diet.

REFERENCES

Sheffer BW. Osteochondrosis or ephiphysitis and other miscellaneous affections. In: Azar FM, Beaty JH, eds. Campbell's Operative Orthopaedics. 14th ed. Philadelphia, PA: Elsevier; 2021:chap 32.

Winell JJ, Baldwin KD, Wells L. Torsional and angular deformities of the limb. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 695.

  • Journal: Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics
  • Published —
Frontometaphyseal dysplasia 1 caused by variant of FLNA gene in a case.

There are no recent clinical trials available for this condition. Please check back because new trials are being conducted frequently.