Femoral + tibial lengthening, 5.3 cm gained
A cll + deformity correction case at the Dr. Donghoon institute (DALRI), Korea, 5.3 cm of bone lengthened (162.2 → 171 cm tall · LON), with 9 before and after radiographs.
- Category
- CLL + deformity correction
- Gained
- 5.3 cm
- Height
- 162.2 → 171 cm
- Follow-up
- —
Drag the handle to compare before and after (arrow keys work too). Before and after cll + deformity correction, case 13127167, 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.
Height measured 162.2 cm before surgery and 171 cm once distraction was complete — a gain of 5.3 cm, as recorded by the hospital itself rather than estimated by us.
The series on this page contains 9 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.
Lengthening the femur and tibia together gives the largest total gain and keeps upper- and lower-leg proportion balanced, but recovery and physiotherapy take clearly longer than a single-segment case.
Timeline and how to read the radiographs
At the standard rate of about 0.75 mm per day, the 5.3 cm gained here corresponds to roughly 71 days of distraction — about 2 months — before the consolidation phase begins.
The source record does not state the follow-up month. Lengthened bone typically consolidates fully around 12-18 months after surgery.
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.
