limb length discrepancy
A condition where one limb is shorter than the other, requiring careful measurement and potential intervention in growing children.
Full Definition
Limb length discrepancy (LLD) refers to a difference in length between paired limbs, most commonly affecting the lower extremities. In children, LLD can be structural (true shortening) or functional (apparent shortening due to joint contractures or pelvic obliquity). Causes include congenital conditions, growth disturbances, infections, trauma, or tumors. Discrepancies greater than 2 cm often require intervention, which may include shoe lifts, epiphysiodesis (growth arrest), or limb lengthening procedures depending on the magnitude and growth remaining.
Usage
Usage note: Often abbreviated as LLD in clinical notes. Hyphenate when used as a compound modifier.
In Context
- "The patient presented with a 3 cm limb length discrepancy secondary to femoral overgrowth following fracture." — clinical assessment
- "Serial scanograms were obtained to monitor progression of the limb length discrepancy during growth." — follow-up plan