Combines stability and versatility.
LON
Lengthening Over Nail
- Internal nail + external fixator
- External fixation during lengthening
- Earlier weight-bearing potential
- External fixator removal surgery required
Limb Lengthening Methods
Different Methods.
One Goal.
The Right Approach for You.
Limb lengthening can be performed using different surgical systems. Each method has its own advantages, limitations and recovery considerations.
Understanding these differences is the first step toward choosing the right approach for your journey.
- LON
- Lengthening Over Nail
- Fitbone
- Fully Internal System
- Precice
- Magnetic Internal System
Proven Systems
Tailored Approach
Expert Guidance
Better Outcomes
Compare the Methods
Understand the Difference. Choose With Confidence.
Each limb lengthening method approaches the same goal differently. The main differences are the implant system, external fixation, weight-bearing capacity and overall treatment experience.
Fully internal. Simply advanced.
Fitbone
Fully Internal System
- Fully internal nail
- No external fixator
- Controlled internal lengthening
- Weight-bearing restrictions during recovery
Precision through innovation.
Precice
Magnetic Internal System
- Fully internal nail
- Magnetic lengthening technology
- No external fixator
- Weight-bearing restrictions during recovery
There is no single “best” method.
The right choice depends on the patient.
Method 01 — LON
A Proven Approach.
Built for Stability.
LON combines an internal intramedullary nail with an external fixator during the lengthening phase.
The external fixator provides stability while gradual lengthening takes place. After the desired length is achieved, the external fixator is removed while the internal nail remains in place to support the bone during healing.
- Internal + External SystemIntramedullary nail combined with an external fixator.
- Weight BearingAllows greater weight-bearing potential compared with fully internal systems.
- External FixationThe external fixator remains in place throughout the lengthening phase.
- Second ProcedureA procedure is required to remove the external fixator after lengthening.
Proven mechanics.
A different treatment experience.
- Intramedullary nail
- Provides internal stability during and after lengthening.
- External fixator
- Ensures stability throughout the lengthening phase.
- After lengthening
- The external fixator is removed; the internal nail remains in place for continued support.
Method 02 — Fitbone
Fully Internal.
Designed for Comfort.
Fitbone is a fully internal limb lengthening system designed to gradually lengthen the bone without the need for an external fixator.
The motorized intramedullary nail performs controlled lengthening while remaining completely inside the limb, offering a different treatment experience compared with external fixation methods.
- Fully Internal SystemThe lengthening nail remains entirely inside the bone.
- No External FixatorNo external frame is required during the lengthening process.
- Controlled LengtheningGradual and controlled distraction using the internal motorized system.
- Weight-Bearing RestrictionsWeight bearing is limited during lengthening and early bone healing.
Internal technology.
A more comfortable lengthening experience.
- Proximal fixation
- Secure locking screws for stability.
- Motorized system
- Controlled and precise lengthening from inside the bone.
- Distal fixation
- Secure locking screws for stability.
Method 03 — Precice
Precision Controlled.
Fully Internal.
Precice is a fully internal limb lengthening system that uses magnetic technology to gradually and precisely lengthen the bone.
An external remote controller activates the mechanism inside the intramedullary nail, allowing controlled distraction without the need for an external fixator.
- Fully Internal SystemThe lengthening nail remains entirely inside the bone.
- Magnetic TechnologyThe nail is activated using an external remote controller.
- Controlled LengtheningGradual lengthening can be precisely managed throughout the distraction phase.
- Weight-Bearing RestrictionsWeight bearing is limited during lengthening and early bone healing.
Magnetic technology.
Precise control throughout lengthening.
- Proximal fixation
- Secure locking screws for stability.
- Magnetic drive system
- Activated by an external remote controller.
- Distal fixation
- Secure locking screws for stability.
Choosing Your Method
The Right Method
Starts With the Right Plan.
There is no single limb lengthening method that is right for everyone.
Your anatomy, height goals, lifestyle, preferred treatment experience and recovery expectations all play a role in determining the most appropriate approach.
- Your GoalsHow much height you want to gain.
- Your AnatomyBone structure and individual physical characteristics.
- Your LifestyleMobility needs and expectations during the process.
- Your RecoveryThe rehabilitation demands and recovery experience of each method.
The goal isn't to choose the most advanced method.
It's to choose the right method for you.
Speak directly with our team about LON, Fitbone and Precice.
