Limb Length Discrepancy in Growing Children: What Parents Should Know
It’s natural for every child’s body to grow at its own pace. But when one leg grows noticeably longer than the other, it may be a sign of limb length discrepancy (LLD)—a condition that can impact walking, posture, and long-term joint health.
When detected early, most cases of LLD can be managed successfully. Here’s what you need to know.
What Is Limb Length Discrepancy?
Limb length discrepancy occurs when one leg is shorter or longer than the other by at least 1 centimeter. In most children, minor differences are common and harmless. But larger differences—especially those that increase with age—can cause discomfort and functional problems.
What Causes It?
Limb length discrepancy can be:
Congenital (present at birth):
- Underdeveloped bones
- Conditions like fibular hemimelia or congenital hip dislocation
Acquired (develops later):
- Injury to the growth plate
- Bone infections
- Childhood fractures that affect growth
- Neurological or muscular disorders
- Tumors or surgeries involving the bones
Signs to Watch For
Some signs of limb length discrepancy may include:
- Visible limp or imbalance when walking
- Uneven wear on shoes
- Complaints of hip, knee, or lower back pain
- Difficulty running or climbing stairs
- One leg appearing visibly shorter or longer
- Tilting of the shoulders or pelvis
If you notice these signs, it’s a good idea to get an orthopedic evaluation.
How Is It Diagnosed?
A pediatric orthopedic specialist will examine your child’s posture and gait, and may recommend:
- X-rays or scanograms to measure limb length precisely
- Growth prediction models to estimate how the difference may progress with age
- Periodic checkups to monitor changes over time
Treatment Options
Treatment depends on the severity of the difference and the child’s age and growth potential.
Mild (under 2 cm):
- No treatment required
- Shoe lifts may help with balance and comfort
Moderate (2–5 cm):
- Shoe inserts or braces
- Growth modulation surgery to slow the longer leg’s growth near the end of puberty
Severe (over 5 cm):
- Limb lengthening surgery may be considered
- Close monitoring throughout growth years
Why Early Evaluation Matters
Early detection allows for timely, less invasive treatment options. Left untreated, limb length discrepancy can lead to:
- Long-term joint strain
- Postural issues
- Pain in the spine, hips, or knees
- Uneven gait and reduced activity levels
Step Toward a Balanced Future
If you notice uneven leg length or walking patterns in your child, don’t wait. Book a consultation with Dr. Nargesh Agrawal at Child OrthoCare. A simple evaluation today can prevent complex problems tomorrow.
Contact Information
Clinic Name: Child OrthoCare
Consulting Pediatric Orthopedic Surgeon: Dr. Nargesh Agrawal
Address: C-7, Ground Floor, D- Park, Model Town -3, New Delhi 110009
Phone: +91 88517 77145
Website: www.childorthocare.online
