Leg Length Discrepancy (LLD)
Leg Length Discrepancy (LLD): When should you see a specialist?
Small discrepancies or Leg Length Discrepancy (LLD) (less than 1 cm) can be considered physiological and generally do not require special attention or measures.
In case of significant dysmetria or heterometria in children (greater than 1 cm), it is advisable to contact centers with specific experience in the subject, such as OrthoChildren Center.
Leg Length Discrepancy (LLD): causes
Leg Length Discrepancy (LLD)can be due to various causes:
- There are congenital forms due to hypoplasia/deficiency, macrosomia, hemihypertrophy, etc.
- developmental forms : enchondromatosis, melorhesostosis, exostosis, neurofibromatosis with gigantism, vascular anomalies
- acquired forms : post-trauma, infections, Perthes disease, etc.
Leg Length Discrepancy (LLD): how do they evolve?
It is important to distinguish between:
- predictable forms
- unpredictable forms
It is the task of the expert pediatric orthopedic surgeon to distinguish the type and make a prediction of the behavior of the discrepancy.
Leg Length Discrepancy (LLD): hypermetria or hypometria?
This distinction is essential to understand where the pathology is located, in the longer or shorter leg, and to direct investigations and measures from there.
Leg Length Discrepancy (LLD): treatment
OrthoChildren Center is a referral center for all types of treatment for length differences between upper and lower limbs.
We refer to the specific sheet

