What are the treatment options for limb length discrepancy?

Limb length discrepancy means the legs or limbs are not the same length. The apparent difference can come from the bones, pelvis, foot position or a movement pattern, so measurement and examination matter before correction. A clinician considers symptoms, age, growth, onset, cause and how the difference affects walking, standing or the back.

A small or stable difference may need observation rather than correction. Custom orthotics can support foot and leg mechanics and may include a lift when that is appropriate. The correction is usually introduced thoughtfully because an abrupt change can feel unfamiliar and alter loading.

Arrange an assessment if you notice a new difference, limp, hip or back discomfort, uneven shoe wear, or fatigue with walking. Bring details about prior fractures, surgery, growth changes and when the symptoms began. Do not add a lift without checking its height and fit with a clinician.

When the difference is substantial, progressive or linked to a structural problem, an orthopaedic team may discuss limb lengthening surgery. This is a staged specialist treatment whose suitability depends on bone health, growth, function and the cause of the discrepancy.

Seek prompt review for sudden shortening or deformity after injury, inability to bear weight, severe new pain, marked swelling, numbness or a cold limb. Routine assessment is appropriate for a persistent limp, worsening asymmetry or pain that interferes with school, work, sleep or exercise.

Ask whether the difference is structural or functional, how it was measured, whether an orthotic could help, how correction would be introduced, and what surgery would involve if the discrepancy progresses.