Knock knees: Know the causes, symptoms and prevention from expert | Health

Knock Knees, also known as ganu vulgum, is a deformity that occurs when the knees are held together and there is a large gap between the ankles, when the knees are bent inward and the knuckles together. Although this condition can affect all age groups, it is more common in young children during their developmental years. While most knock knees fix on their own, for some, this may indicate an underlying condition, such as rickets or other bone diseases. It is most common in obese adolescents and children with flat feet or hypermobile joints. (Also Read: Expert on Best Exercises to Manage Arthritis Pain)

Dr. Debashish Chanda, Department of Orthopedics, CK Birla Hospital, Gurugram speaks on HT Causes, Symptoms and Prevention of Knock Knee In Interaction with HT Digital.


Primarily, knock knees are common in young children during their original growth and developmental years. However, the legs are usually straightened as the child grows. The underlying condition can be highlighted if the knee knees are usually not resolved at the age of more than 6 years, and if continued into adulthood, this can be problematic. Vitamin D deficiency in these children is a major cause of knock knees. Vitamin D helps absorb calcium and absorbs calcium in the bones, strengthening them. Other causes for knock knees include knee / ligament injuries, fractures, etc. Patients with osteoarthritis and arthritis may also develop knock knees.

Knock Knees, Common Legs and Bow Legs (Shutterstock)
Knock Knees, Common Legs and Bow Legs (Shutterstock)


– Visible symptoms include greater spacing than normal when the knees are placed together between the feet and the ankles, usually about 8 cm.

– The most characteristic of a knock knee in children is the inability to run, if attempted, they will fall immediately.

– Other symptoms include ankle pain, foot, hip, knee, knee instability, laceration, joint and lumbar stiffness and pain and progressive knee arthritis.

– Some people may experience symptoms of other knock knee related conditions, including pain and progressive joint problems that occur only after 25 or 30 years.


Dr Chanda says this is a preventable disorder if diagnosed at the right time.

“Because the primary cause is vitamin D deficiency, 90% of children under the age of 8 are successfully treated with vitamin D only after the level has been assessed by basic X-rays. , It straightens the baby’s foot within 4-5 months and the child continues in normal activities. Diagnosis and treatment, “experts say.

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