Tibial lengthening, 5.8 cm gained
A cll + deformity correction case at the Dr. Donghoon institute (DALRI), Korea, 5.8 cm of bone lengthened (LON · 24 months post-op), with 4 before and after radiographs.
- Category
- CLL + deformity correction
- Gained
- 5.8 cm
- Height
- —
- Follow-up
- 24 months
Drag the handle to compare before and after (arrow keys work too). Before and after cll + deformity correction, case 11367030, image 2, Dr. Donghoon institute (DALRI)
About this case
This patient was treated in the height increase (limb lengthening) group (cll + deformity correction) at the Dr. Donghoon institute (DALRI) in Seoul.
The record states 5.8 cm of lengthening but no before/after height, so only the verified figure is shown.
The series on this page contains 4 images, in the order the hospital published them.
Technique and segment
LON (Lengthening Over Nail) combines an external frame with an intramedullary nail, so the frame stays on only during the distraction phase and comes off once the target length is reached, while the nail carries the load through consolidation.
Tibial lengthening runs through the calf and Achilles complex, which tightens quickly, so physiotherapy during distraction focuses on ankle range; the safe gain per segment is usually smaller than in the femur.
Timeline and how to read the radiographs
At the standard rate of about 0.75 mm per day, the 5.8 cm gained here corresponds to roughly 77 days of distraction — about 3 months — before the consolidation phase begins.
This series was taken 24 months after surgery. The regenerate is fully consolidated, and this is the window in which hardware removal is considered.
Daily physiotherapy through the distraction phase is the single strongest predictor of the result: patients who stop stretching run into joint stiffness far more often than into problems with the bone itself.
All images are published by the Dr. Donghoon institute (DALRI) and shown with permission. Individual results vary; these cases are not a guarantee of outcome.
