Managing Knock Knees: From Childhood to Adulthood

Knock knees, also known as genu valgum, is a condition where the knees angle inward towards each other when the legs are straightened. This causes the ankles to remain spaced apart while the knees touch.

Causes:

Normal Development: In many cases, knock knees are a normal part of a child’s growth and development. Young children may develop knock knees as they begin to walk, and this often resolves on its own by the time they reach 7-8 years old.
Underlying Medical Conditions: In some cases, knock knees can be a symptom of an underlying medical condition, such as:
- Rickets: A bone disease caused by vitamin D deficiency.
- Skeletal Dysplasias: A group of genetic disorders that affect bone growth.
- Obesity: Excess weight can put additional stress on the knees, contributing to knock knees.
- Injury: An injury to the growth plate of the shinbone or thighbone can cause knock knees in one leg.

Symptoms:

Knees Touching: The most prominent symptom is the inward angulation of the knees, causing them to touch when the ankles are apart.
Unusual Walking Pattern: Children with knock knees may develop an unusual walking pattern to compensate for the leg alignment.
Pain: In some cases, knock knees can cause pain in the knees, hips, or ankles.
Limited Range of Motion: Severe knock knees can restrict the range of motion in the hips and knees.

Diagnosis:

A doctor will typically diagnose knock knees through a physical examination, which may include assessing the child’s gait and measuring the distance between their ankles when their knees are together. In some cases, imaging tests such as X-rays may be necessary to rule out other underlying conditions.

Treatment:

Observation: In most cases, mild knock knees in young children will resolve on their own without treatment.
Bracing: In some cases, a brace may be used to help guide the bones into a more normal alignment.
Surgery: In severe cases, surgery may be necessary to correct the alignment of the bones.

Prevention:

Healthy Diet: Ensuring that children receive adequate amounts of vitamin D and calcium can help prevent rickets, which can contribute to knock knees.
Maintaining a Healthy Weight: Maintaining a healthy weight can help reduce stress on the knees and prevent the development of knock knees.