Bone dysmetria: causes and symptoms

Bone dismetries are caused by a difference in the length of the bones and can cause more serious pathologies.. Throughout this post, the importance of going to a qualified professional when symptoms appear will be explained.

What is a bone discrepancy?

A bone discrepancy is a difference in the length of the limbs., due to a difference in the length of the bones for very diverse reasons. In many cases, this difference is minimal and does not pose a problem in the patient's daily activities. However, when the difference in measurement is greater, the dysmetria can affect day-to-day life.

Causes of bone dismetria

The causes of bone dismetries are very varied, depending on the reason that causes the difference in length.. In many cases, this difference is due to a congenital anomaly of the fetus, while it is still in the mother's womb. In these cases, an infection may occur that causes the development of all the bones to be uneven.

On other occasions, this pathology is caused by neuromuscular diseases, which are diseases that affect muscles and nerves, and can cause incomplete muscle development. Among them, muscular dystrophies could be distinguished, for example.

In other cases, dysmetries may be caused by infections, which prevent correct development or, in some cases, require the removal of a bone segment, causing a dysmetria.

The most common thing is that these bone disorders are related to pathologies that directly affect the growth cartilage, which causes the bone to develop correctly.

Types of bone dismetria

When talking about the types of bone dismetria, first of all, A differentiation must be made between real dismetries, which are permanent asymmetries caused by other pathologies, and apparent dismetries, which are those that arise as a consequence of muscle contractures.

On the other hand, the classification of dismetries is made based on the difference in length between one bone and another. Firstly, there are differences of less than one centimeter, which do not affect the patient's activities and simply must be observed by a specialist during the growth stage.

Secondly, discrepancies between one and a half centimeters and four centimeters, in this case, it is usually enough for the patient to insert a compensatory rise inside their shoe.. In the case of differences of up to 7 centimeters, various lengthening techniques can be used, as well as adapted shoes.

However, in patients with differences of more than ten centimeters, it is usually necessary for the patient to undergo surgery.

What are the symptoms of a bone dysmetria?

The main symptoms of dysmetries usually manifest themselves in an alteration in gait, that is, the patient presents an unstable and irregular gait., which can also cause other types of hip or knee injuries. In these cases, the patient usually experiences discomfort when walking, since other parts of his body have to exert extra effort.

On the other hand, it is common to present a deviation in posture that will be reflected, especially in the position of your spine.

How can I tell if I have a bone length discrepancy?

Contrary to popular belief, leg length discrepancy is not usually diagnosed in childhood, but rather goes unnoticed until adulthood. It is common for patients to live with it for years, until they begin to experience persistent discomfort such as recurring lower back pain, a feeling of overload in one leg, or uneven wear on their shoes.

In addition, leg length discrepancy often causes symptoms that don't disappear with rest and may even worsen with physical activity or after long periods of standing. It's also possible to notice a tilt in the pelvis or an asymmetrical posture when looking in the mirror.

If there is even a slight suspicion of dysmetria, it is important to consult a specialist for a proper evaluation, as this condition can only be confirmed through specific medical tests.

Diagnosis of a bone dysmetria

In some cases, bone dismetria can be observed by ultrasound when the fetus is in the womb. However, the most common thing is that it is diagnosed during the child's growth stage, who normally goes to the specialist's office showing symptoms.

First of all, An evaluation of the patient's general condition will be carried out, as well as, over a period of time, they must undergo periodic check-ups, in which the development of the pathology will be observed.

In many cases, it will be necessary to perform diagnostic imaging tests, such as x-rays or magnetic resonance imaging, to observe the patient's joint, as well as extract information about the possible causes.

Normally, the patient will undergo an examination of the hip joint to rule out that the origin of the dysmetria is located in this joint.

Bone dysmetry in children: when to worry and when to observe

It is normal to have small differences in limb growth during childhood and adolescence, but they usually correct themselves spontaneously with development. However, when the difference is progressive or causes symptoms, it is important to pay attention to it.

There are clear signs in children such as persistent limping, frequent falls, excessive fatigue when walking, or pain in areas like the hip, knee, or back. In these situations, leg length discrepancy may be related to growth plate abnormalities or more complex conditions affecting bone development.

To avoid future complications and invasive treatments, it is key to consult a specialist doctor during the growth stage, in order to decide whether intervention is necessary or simply to maintain periodic monitoring and review the child's progress.

Bone discrepancy and back pain: relationship with the spine

There is a direct relationship between leg length discrepancy and back pain, especially if it is related to chronic lower back pain. When one leg is shorter than the other, the body naturally compensates by tilting the pelvis, altering the natural alignment of the spine and causing pain.

Muscle overload and continuous tension can lead to contractures, functional deviations, and even pain radiating to the lower extremities if prolonged. Unfortunately, many patients experience lower back pain without realizing that it originates not from spinal problems specifically, but from an undiagnosed leg length discrepancy.

The length difference can be corrected by means of lifts, rehabilitation treatment or surgery in the indicated cases, thus achieving a significant improvement in back pain and greater postural stability.

Main treatments for bone dismetria

Once bone dismetria has been diagnosed, the most appropriate treatment will be designed for each patient., taking into account the characteristics it presents.

In the case of mild discrepancies, it will be sufficient to use an increase inside the shoe, which helps both legs reach the same length or the use of adapted footwear.

In patients with more severe dysmetries, surgery will be studied., which helps improve the patient's quality of life. When the dysmetria is diagnosed at an age of growth, the most recurrent treatment is bone lengthening, through which a lengthening of the bone is carried out in different interventions, with the objective of the patient reaching the end of the growth stage without dysmetria in their joints.

Consequences of not treating a bone length discrepancy in time

The body maintains compensatory mechanisms that can be harmful in the long term if bone length discrepancy is not diagnosed and treated promptly. These adaptations increase wear and tear on the joints, especially the hips, knees, and spine.

Over time, chronic pain, functional limitations, and an increased risk of early-onset osteoarthritis are likely to develop, both in adults and in young, active individuals. The patient's quality of life can also be negatively impacted, making it difficult to participate in sports and perform daily activities if the leg length discrepancy is not treated promptly.

Ignoring a condition like bone dysmetria or normalizing its symptoms can cause the body to adapt incorrectly for years, aggravating pain, promoting postural problems, and generating progressive joint wear.

Prevention of bone dysmetria

In many cases, bone dismetries are inevitable, since they are caused by congenital alterations or non-treatable pathologies. However, there are certain guidelines that can help prevent it.

First of all, Periodic reviews take on special importance in the growth stage, with the aim of locating any anomaly and being able to solve it in time.

In addition, it is advisable to avoid forced postures that may cause damage to the joints and muscles of the human body.

As explained, it is essential to go to a specialist when symptoms or pain appear, so that they can evaluate the case and apply the appropriate treatment. In this way, the dysmetria can be prevented from affecting the patient's quality of life.