1. What is the Lengthening Over Nail (LON) method?
The LON method is a bone lengthening technique that combines an intramedullary nail with an external fixator. The bone is gradually lengthened using this combination of internal and external devices, providing stability and reducing the duration of external fixation.
2. How does the LON method differ from other limb lengthening techniques?
Unlike traditional methods that rely solely on external fixators, the LON method uses both internal and external devices. This combination improves stability and shortens the time the external fixator is needed, making it a more comfortable and efficient process.
3. What are the advantages of the LON method?
Reduced External Fixation Time: The external fixator is used only during the lengthening phase, reducing the overall treatment time.
Enhanced Stability: The intramedullary nail provides internal support, allowing patients to bear weight during the lengthening process.
Cost-Effectiveness: The LON method is often more affordable compared to other limb lengthening techniques.
4. How much height can be gained using the LON method?
Patients can typically achieve a height increase of 5 to 8 centimeters per limb. The exact amount of lengthening depends on individual factors and the patient’s goals.
5. What is the recovery process like with the LON method?
The recovery process involves:
Lengthening Phase: Gradual bone lengthening using the external fixator, typically at a rate of 1 millimeter per day.
Consolidation Phase: Bone healing and hardening, during which the external fixator is removed, and the intramedullary nail continues to provide support.
Rehabilitation: Physical therapy to restore function and strength to the limbs.
6. Are there risks associated with the LON method?
Possible risks include:
Infection at the surgical site or where the external fixator is attached.
Nerve or muscle damage due to the surgery.
Bone healing issues, such as delayed healing or non-union.
Hardware complications related to the external fixator or intramedullary nail.
7. How long does the entire LON procedure take?
The total process typically takes between 6 to 12 months, depending on the amount of lengthening required and individual healing rates.
8. Is the LON method suitable for everyone?
The LON method is suitable for adults with closed growth plates and good overall health. A thorough evaluation by an orthopedic surgeon is essential to determine if this method is right for a particular patient.
9. What is the cost of the LON method?
The LON method is generally more affordable compared to other limb lengthening techniques, making it an attractive option for many patients seeking height increase.
10. How is the LON method performed?
The procedure includes:
Surgical Osteotomy: Cutting the bone to create a gap.
Device Insertion: Placing the intramedullary nail and attaching the external fixator.
Gradual Lengthening: Using the external fixator to slowly separate the bone ends, allowing new bone to form.
Consolidation: Allowing the new bone to harden and heal.
