Having one leg much longer than the various other is relatively common. The problem is recognized as leg length discrepancy.

Some research shows that 40–70% of people have some type of leg length discrepancy (LLD).

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The differences in leg size can selection from a fraction of an inch to numerous inches. The higher the difference, the more likely the is the the human being will experience concerns with gait, posture, and also pain.

In this article, we comment on the causes and symptoms the LLD. Us also carry out information ~ above the diagnosis that LLD and also the treatment options available.

Share top top PinterestMinor discrepancies in leg size often cause no symptom or problems.
There are two types of LLD: functional and structural. These species have different causes.

Functional LLD

In practical LLD, the foot bones are equal in length. However, one leg appears longer 보다 the other due to an problem with among the adhering to body parts:


In children, sensible LLD can happen when a child is born through an problem that alters their hip alignment.

In adults, functional LLD can result from chronic pain or arthritis and also associated problems in the spine, hip, or knee.

Neuromuscular problems are another potential reason of functional LLD, together these conditions can affect a person’s alignment and also posture.

In some cases, exercise can add to functional LLD. If one athlete trains in a means that causes muscle imbalances or weaknesses, they may temporarily experience functional LLD.

Structural discrepancy

Structural LLD occurs when either the thigh bone (femur) or the shin bone (tibia) is much shorter in one leg than in the other. The condition commonly presents at birth, however it can additionally happen together a child grows.

Some potential reasons of structure LLD include:

Growth bowl injuries: growth plates are areas of cartilage the sit close to the finish of the lengthy bones. Sometimes, a development plate deserve to sustain one injury, which may cause the bone to grow much faster or slower than the bone on the opposite next of the body.Bone tumors: Bone tumors and their therapies can impact bone growth and contribute to LLD.Juvenile arthritis (JA): JA is a childhood autoimmune an illness that causes inflammation the the tissue inside the joints. That can reason discrepancies in bone growth.

The key symptom of LLD is having actually one leg much longer than the other. If the discrepancy is very small, there might not be any type of other symptoms.

However, a 2017 study notes that a discrepancy as small as 2 centimeters (cm) can cause the pelvis to compensate for inequalities in posture.

Moderate-to-severe cases of LLD can cause added symptoms, including:

gait issues, such together a limppain in the back, hip, knee, or ankleincreased exhaustion

The examine authors likewise note the LLD can influence a person’s all at once quality of life.

People who suspect the they have one leg much longer than the other must see a medical professional for a diagnosis.

While wait for an appointment, a human being could try the following home test to see whether there is a opportunity of LLD.

Home test

To perform a residence test, the human being should:

Remove your shoes and also socks.Lie down on the floor, keeping the legs together.Ask a friend or household member to location the palms of their hands ~ above the who hip bones, so that they have actually one hand on each hip.Ask the helper to relocate the person’s hips gently from next to side for approximately 60 seconds. This motion helps ease up tight muscles.Ask the helper to check the alignment the the person’s ankle bones.

Ankles that space not aligned might indicate LLD. It will certainly be crucial to view a medical professional to confirm LLD and to identify whether that is a functional or structural issue.

Medical diagnosis

A doctor might use several methods to diagnose LLD. These include:

physical examinationobservation of how the person stands, sits, and also movesgait analysismeasuring the LLD by questioning the person to stand on blocks of miscellaneous heights till the hips room level

The form of LLD will recognize the treatment that a human receives.

Treating useful LLD

The treatment for useful LLD commonly involves physical therapy, massage, and details exercises to correct areas of imbalance and weakness. It is likewise important to correct bad posture.

The exact form and number of interventions that a human being needs will rely on the basic cause and severity that the LLD.

Exercising and also functional LLD

Exercises may assist correct some sensible LLDs. However, that is crucial that world use the exactly stretching and strengthening techniques. Castle should also take treatment to exercise the next of the body that will help correct the LLD.

To avoid causing more issues, it may be cautious to look for the help of a physics therapist. The therapist deserve to identify locations of imbalance and recommend appropriate exercises.

Treating structural LLD

Correcting structural LLD is much less straightforward. Treatment typically depends on the difference in length in between the legs.

Some potential treatment alternatives include:

A shoe lift

A human who has actually mild LLD of less than 1 inch may advantage from attract a shoe lift inside the shoe on the shorter leg. A shoes lift deserve to alleviate back pain and improve a who gait.

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Surgery might be essential to law more significant LLDs. Numerous surgical options are available, each of which aims to do among the following:

shorten the longer leglengthen the shorter leginhibit the growth of the longer leg

Following surgery, world will require consistent follow-up access time to the doctor’s office. Castle will likewise need considerable rehabilitation that has exercise and also physical therapy.