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Lengthening And Then Nailing (LATN)
Lengthening And Then Nailing (LATN) is an advanced limb lengthening technique introduced to reduce the total duration of external fixation. It combines gradual distraction using an external fixator with internal intramedullary stabilization after the lengthening phase.
At HeightIncreaseInfo (HII), LATN is performed under structured orthopedic protocols to ensure stability, controlled bone regeneration, and faster transition from external frame to internal support.
Why LATN Is Performed
Traditional external fixation methods require the frame to remain in place during both distraction and consolidation phases. Prolonged frame duration may increase:
- Pin-site complications
- Discomfort and restricted mobility
- Risk of joint stiffness
- Patient fatigue during long treatment cycles
LATN was developed to minimize these concerns by:
- Reducing external fixator time
- Providing internal bone stability earlier
- Supporting controlled consolidation
- Allowing earlier functional rehabilitation
How Lengthening And Then Nailing Works
First Surgery – Osteotomy & External Fixation
A controlled osteotomy is performed and an external fixator is applied. Pins and wires are placed strategically to allow future intramedullary nailing.
Distraction Phase
Gradual bone distraction is carried out at approximately 1 mm per day until the desired length is achieved.
Second Surgery – Intramedullary Nailing
After completing distraction, the external frame is removed and a large-diameter, statically locked intramedullary nail is inserted.
Reaming & Consolidation
Reaming through the regenerate bone is suggested to enhance and accelerate bone healing during consolidation.
Biomechanical Advantages of LATN
Intramedullary nail provides internal structural support during consolidation.
Reduces risk of axial deviation after frame removal.
Enhances bone healing through reaming of regenerate.
Maintains alignment and mechanical stability long term.
Recovery After LATN Procedure
Partial weight bearing during consolidation
Support with crutch or walker
Regular follow-up imaging for bone healing
Structured physiotherapy program
Gradual progression to full weight bearing
At HII, recovery planning is individualized to ensure safe mobilization, optimal consolidation, and long-term limb alignment.