. Previous Injury to a Bone in the Leg
A broken leg bone can lead to a limb length discrepancy if it heals in a shortened position. This is more likely to happen if the bone was broken into many pieces. It is also more likely to happen if the skin and muscle tissue around the bone were severely injured and exposed, as occurs in an open fracture.
In a child, a broken bone sometimes grows faster for several years after healing, causing it to become longer than the bone on the opposite side. This type of overgrowth occurs most often in young children with femur (thighbone) fractures.
Alternatively, a break in a child's bone through the growth plate near the end of the bone may cause slower growth, resulting in a shorter leg.
. Bone Infection
Bone infections that occur in growing children may cause a significant limb length discrepancy. This is especially true if the infection happens in infancy.
. Bone Diseases (Dysplasias)
Certain bone diseases may cause limb length discrepancy, including:
. Multiple hereditary exostoses
. Ollier disease
Other causes of limb length discrepancy include:
. Neurologic conditions
. Conditions that cause inflammation of the joints during growth, such as juvenile arthritis.
In some cases, the cause of limb length discrepancy is "idiopathic," or unknown. This is particularly true in cases involving underdevelopment of the inner or outer side of the leg, or partial overgrowth of one side of the body.
These conditions are usually present at birth, but the limb length difference may be too small to be detected early on. As the child grows, however, the discrepancy increases and becomes more noticeable. In underdevelopment, one of the two bones between the knee and the ankle is abnormally short. The child may also have related foot or knee problems.
Hemihypertrophy (one side too big) and hemiatrophy (one side too small) are rare conditions that cause limb length discrepancy. In patients with these conditions, the arm and leg on one side of the body are either longer or shorter than the arm and leg on the opposite side. There may also be a difference between the two sides of the face. In some cases, the exact cause of these conditions cannot be determined.
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About Iranian Surgery
Iranian surgery is an online medical tourism platform where you can find the best orthopedic Surgeons in Iran. The price of limb length discrepancy treatment in Iran can vary according to each individual’s case and will be determined based on photos and an in-person assessment with the doctor.
For more information about the cost of limb length discrepancy treatment in Iran and to schedule an appointment in advance, you can contact Iranian Surgery consultants via WhatsApp number +98 901 929 0946. This service is completely free.