Limb lengthening surgery
Controlled, gradual lengthening of the leg bones through distraction osteogenesis.
How it works
Limb lengthening is based on distraction osteogenesis. The bone is cut surgically (osteotomy); after a short waiting period, the bone ends are moved apart by about a millimetre each day using a special device. The body forms new bone tissue in the gap. Once lengthening is complete, the process continues until the new bone hardens.
Methods
- Internal nail (Precice / Fitbone)A magnetic, motorised nail placed entirely inside the body and operated by an external remote. There is no external frame, so daily life and recovery are more comfortable.
- LON — lengthening over nailAn external fixator and an internal nail are used together; the external fixator is removed early, during consolidation. Infection risk is markedly lower than with a classic external fixator.
- External fixator (Ilizarov / LRS)The classic externally worn system. A proven method, but the device is worn throughout the process.
Which method suits you is decided together during consultation, based on your anatomy, the targeted length and an overall health assessment.
Which bone is lengthened?
Lengthening is usually performed on the upper leg (femur) or lower leg (tibia). The femur allows a greater gain in a single operation, while the choice is made by the surgeon according to your build and goals.
Phases
- 01Latency (about 5–7 days)The waiting period after the bone is cut, during which healing begins.
- 02Distraction (lengthening)The bone ends are separated by about 1 mm per day; new bone forms in the gap.
- 03ConsolidationThe new bone hardens and calcifies. This usually takes about twice as long as the lengthening period.
- 04RehabilitationPhysiotherapy preserves muscle and joint flexibility and restores walking.
Who is a candidate?
Limb lengthening is suitable for adults whose growth plates have closed. Good general health and realistic expectations are important. Suitability is assessed through detailed examination and imaging.
Safety and risks
Like any surgery, limb lengthening carries risks: joint stiffness, nerve or vascular problems, and delayed bone healing can occur. With an experienced team, the right choice of method and regular physiotherapy, these risks are reduced and managed.
Results vary from person to person; no specific amount of lengthening or outcome can be guaranteed. This page is general information and does not replace medical advice.