What is Acquired Limb Length Discrepancy?
Limb length discrepancy (LLD) is a difference between the lengths of two limbs such as the legs or arms. Acquired LLD usually develops gradually over time. Any bone of the body can be affected, but it is usually the long bones that patients visibly notice or feel. LLD can be a result of an injury, infection, arthritis, illness, or tumor. It may affect only one side of the body as the other side of the body continues to develop normally, causing the length discrepancy. In some cases, the underlying cause of the LLD can be bilateral. Acquired LLD may be seen in babies, children and adolescents, or adulthoods. This type of LLD is not congenital, meaning the limb length is not present at birth.