How effective is limb lengthening surgery for limb length discrepancy?

The procedure involves cutting a bone and gradually creating space between the bone ends so new bone can form. An internal device or an external frame may hold the limb in position while it lengthens. The aim is to improve limb balance, alignment and function, not simply to change the measurement.

The achievable correction is individual. Factors include where the difference is located, the condition of the bone and joints, muscle flexibility, nerve comfort and the alignment of the hip, knee and ankle. Healing can be uneven, and stiffness or difficulty controlling the device may slow progress.

Ask the orthopaedic team how much correction is planned, which bone will be treated and which device will be used. Clarify weight-bearing limits, pin or wound care, sleeping arrangements, transport and the physiotherapy schedule. Regular exercises help protect movement at nearby joints, while follow-up imaging checks alignment and new bone formation.

Report increasing pain, new numbness or a sudden change in limb position rather than adjusting the device yourself. A second opinion can be useful when the proposed correction, expected rehabilitation or alternatives such as a shoe lift has not been explained. Read more about [Limb Lengthening Surgery](/treatments/trauma-and-fracture-care/limb-lengthening-surgery/).

Contact the treating team urgently for a cold or pale foot, severe swelling, new weakness, spreading redness, pus, fever, or pain that suddenly becomes difficult to control. New calf swelling or breathlessness also needs immediate medical assessment. During recovery, these changes can signal a problem with circulation, nerves, infection or the healing bone.

What is causing my limb length difference? How will you measure the correction and monitor alignment? Which movements and weight-bearing activities are allowed at each stage? What alternatives could meet my functional goals with less treatment?