True Leg Length Discrepancy Test
Overview
You may be surprised to learn that most people have one leg that's just a bit longer than the other, or one foot that may be slightly larger. But for children with significant limb length discrepancies, the size difference between limbs can be a serious problem. There are two types of limb length discrepancies. Congenital discrepancy is when babies are born with one leg longer than the other. In some cases both legs are normal, except that one is shorter than the other. In other cases one particular part of the leg is underdeveloped or is absent. Acquired discrepancy is when babies are normal at birth, but some kind of injury happens, such as a severe fracture. The bone growth in that limb slows, which results in a leg length discrepancy that worsens as the child continues to grow.
Causes
A number of causes may lead to leg length discrepancy in children. Differences in leg length frequently follow fractures in the lower extremities in children due to over or under stimulation of the growth plates in the broken leg. Leg length discrepancy may also be caused by a congenital abnormality associated with a condition called hemihypertrophy. Or it may result from neuromuscular diseases such as polio and cerebral palsy. Many times, no cause can be identified. A small leg length discrepancy of a quarter of an inch or less is quite common in the general population and of no clinical significance. Larger leg length discrepancies become more significant. The long-term consequences of a short leg may include knee pain, back pain, and abnormal gait or limp.
Symptoms
The patient/athlete may present with an altered gait (such as limping) and/or scoliosis and/or low back pain. Lower extremity disorders are possibly associated with LLD, some of these are increased hip pain and degeneration (especially involving the long leg). Increased risk of: knee injury, ITB syndrome, pronation and plantar fascitis, asymmetrical strength in lower extremity. Increased disc or vertebral degeneration. Symptoms vary between patients, some patients may complain of just headaches.
Diagnosis
A doctor will generally take a detailed medical history of both the patient and family, including asking about recent injuries or illnesses. He or she will carefully examine the patient, observing how he or she moves and stands. If necessary, an orthopedic surgeon will order X-ray, bone age determinations and computed tomography (CT) scans or magnetic resonance imaging (MRI).
Non Surgical Treatment
Heel lifts and sole lifts are simple ways Pedorthists can compensate for leg length deficiencies. These small modifications can make a tremendous difference to a person?s comfort, balance and mobility. Although people do not always know if they have LLD if you have any of the symptoms I have mentioned you should consult a Pedorthist as treating your condition early will reduce the development of serious problems later on.
leg length discrepancy treatment adults
Surgical Treatment
Differences of an inch-and-a-half to two inches may require epiphysiodesis (adjusting the growth of the longer side) or acute shortening of the other side. Differences greater than 2.5 inches usually require a lengthening procedure. The short bone is cut and an external device is applied. Gradual lengthening is done over months to allow the muscles and nerves accommodate the new length.
You may be surprised to learn that most people have one leg that's just a bit longer than the other, or one foot that may be slightly larger. But for children with significant limb length discrepancies, the size difference between limbs can be a serious problem. There are two types of limb length discrepancies. Congenital discrepancy is when babies are born with one leg longer than the other. In some cases both legs are normal, except that one is shorter than the other. In other cases one particular part of the leg is underdeveloped or is absent. Acquired discrepancy is when babies are normal at birth, but some kind of injury happens, such as a severe fracture. The bone growth in that limb slows, which results in a leg length discrepancy that worsens as the child continues to grow.
Causes
A number of causes may lead to leg length discrepancy in children. Differences in leg length frequently follow fractures in the lower extremities in children due to over or under stimulation of the growth plates in the broken leg. Leg length discrepancy may also be caused by a congenital abnormality associated with a condition called hemihypertrophy. Or it may result from neuromuscular diseases such as polio and cerebral palsy. Many times, no cause can be identified. A small leg length discrepancy of a quarter of an inch or less is quite common in the general population and of no clinical significance. Larger leg length discrepancies become more significant. The long-term consequences of a short leg may include knee pain, back pain, and abnormal gait or limp.
Symptoms
The patient/athlete may present with an altered gait (such as limping) and/or scoliosis and/or low back pain. Lower extremity disorders are possibly associated with LLD, some of these are increased hip pain and degeneration (especially involving the long leg). Increased risk of: knee injury, ITB syndrome, pronation and plantar fascitis, asymmetrical strength in lower extremity. Increased disc or vertebral degeneration. Symptoms vary between patients, some patients may complain of just headaches.
Diagnosis
A doctor will generally take a detailed medical history of both the patient and family, including asking about recent injuries or illnesses. He or she will carefully examine the patient, observing how he or she moves and stands. If necessary, an orthopedic surgeon will order X-ray, bone age determinations and computed tomography (CT) scans or magnetic resonance imaging (MRI).
Non Surgical Treatment
Heel lifts and sole lifts are simple ways Pedorthists can compensate for leg length deficiencies. These small modifications can make a tremendous difference to a person?s comfort, balance and mobility. Although people do not always know if they have LLD if you have any of the symptoms I have mentioned you should consult a Pedorthist as treating your condition early will reduce the development of serious problems later on.
leg length discrepancy treatment adults
Surgical Treatment
Differences of an inch-and-a-half to two inches may require epiphysiodesis (adjusting the growth of the longer side) or acute shortening of the other side. Differences greater than 2.5 inches usually require a lengthening procedure. The short bone is cut and an external device is applied. Gradual lengthening is done over months to allow the muscles and nerves accommodate the new length.
