Fitbone™ is a fully internal, motorized limb lengthening system developed in Germany. Unlike traditional external frames, this advanced intramedullary technology operates entirely inside the bone, offering a more comfortable and cosmetically refined solution for height enhancement.
At Height Increase Info (HII), Fitbone is recommended for patients who prioritize medical precision, reduced infection risk, early mobility, and a more natural daily life during the lengthening journey.
The Fitbone nail is implanted inside the bone under general anesthesia. A small receiver is placed beneath the skin and connected to the nail. The procedure typically takes 1.5 to 2 hours.
Patients usually remain hospitalized for around 5 days and begin assisted standing and walking within 24 hours using a walker or crutches.
Around 5 days after surgery, lengthening begins. Patients use a handheld external transmitter placed over the skin receiver.
Three sessions per day result in approximately 1 mm of bone growth daily. Typically, 6 cm can be achieved in about 60 days and 8 cm in around 80 days.
As the nail gradually expands, new bone tissue forms in the created gap. Once the target height is achieved, distraction stops and the consolidation phase begins, allowing the bone to harden and stabilize.
Healing progress is carefully monitored through regular X-ray imaging.
Daily physiotherapy is essential during treatment. Stretching and strengthening exercises help prevent stiffness, maintain joint mobility, and allow muscles to adapt to the new bone length.
Rehabilitation continues throughout both distraction and consolidation phases.
Designed for precision, comfort, and a more refined recovery experience compared to traditional external methods.
No external frames, reducing infection risk and improving overall comfort.
Small surgical incisions lead to better cosmetic outcomes.
Patients begin assisted walking shortly after surgery.
Controlled lengthening ensures consistent and predictable results.
The system allows both lengthening and controlled correction if needed.
No bulky external device allows more natural movement and lifestyle.
(3.1 inches)
(2.7 inches)
The achievable increase depends on bone anatomy, muscle flexibility, nerve tolerance, and overall adaptation during the lengthening process.
No external fixators and no pin-site infections.
Only small incisions with improved cosmetic outcome.
Assisted walking begins one day after surgery.
Motorized nail allows controlled and reliable distraction.
The system can lengthen and shorten if medically required.
As with any surgical procedure, limb lengthening carries potential risks. These are managed through detailed planning and structured follow-up.
Fitbone™ is ideal for patients seeking a fully internal system without external frames, smaller scars, and greater independence during treatment. Candidates must be medically suitable and committed to daily physiotherapy, follow-ups, and structured rehabilitation.