The “rotundity” and “touch knee” are also commonly known as O-shaped legs and X-shaped legs.
“O” shaped legs, also known as knee inversion, the main performance has double lower limbs bent outward, the distance between the knees is wide (so called “rotund legs”), walking sway, toes to the inner side of the bias; children lying down, the lower limbs straight, patella to the upper, bilateral inner ankle together, double knee The greater the distance, the heavier the inversion.
“X” shaped leg, also known as knee valgus, mainly manifests itself as awkward walking, walking with both knees colliding with each other (so called “touch knee syndrome”), easy to fall down, the toes deviate inward; when the child lies flat, the lower limbs are straight, the patella is directly above, when the knees are together, the distance between the bilateral inner ankles Distance exists, the greater the distance. The greater the distance, the heavier the inversion.
According to the cause, it can be divided into physiological and pathological. Physiological inversion and ectropion, as the name implies, is a stage in the development of the body, with the maturation of the body, the symptoms can be improved and corrected on their own, without the need for special medical intervention; generally normal children from birth to 1 year old, there is a certain degree of knee inversion, to 1.5 years old, the lower extremities become straight, this belongs to the physiological knee inversion, generally do not need treatment; 2 years old to 2.5 years old. Due to the development of the skeleton, both knees will be turned out again, and then both lower limbs will gradually become straighter and closer to the normal level by the age of 7 years, which is a physiological knee valgus and generally does not require treatment. Pathological knee valgus and knee valgus are deformities of the knee joint caused by various reasons, including rickets, asymmetric epiphyseal injury, infection, congenital epiphyseal developmental malformation, etc. If your child has the above symptoms, you should take your child to a specialist hospital for examination to clarify the cause and degree of deformity for early detection and treatment.