Femoral lengthening, 1.5 cm gained
A congenital condition case at the Dr. Donghoon institute (DALRI), Korea, 1.5 cm of bone lengthened (STRYDE), with 6 before and after radiographs.
- Category
- Congenital condition
- Gained
- 1.5 cm
- Height
- —
- Follow-up
- —
Drag the handle to compare before and after (arrow keys work too). Before and after congenital condition, case 12335480, image 2, Dr. Donghoon institute (DALRI)
About this case
This patient was treated in the congenital & paediatric conditions group (congenital condition) at the Dr. Donghoon institute (DALRI) in Seoul.
The record states 1.5 cm of lengthening but no before/after height, so only the verified figure is shown.
The series on this page contains 6 images, in the order the hospital published them.
Technique and segment
Stryde is a weight-bearing internal lengthening nail, allowing earlier loading during the distraction phase than earlier internal systems.
The femur is wrapped in well-vascularised muscle, so the new bone usually consolidates faster than in the tibia and tolerates a larger gain per segment, at the cost of watching for knee stiffness and quadriceps weakness.
Timeline and how to read the radiographs
At the standard rate of about 0.75 mm per day, the 1.5 cm gained here corresponds to roughly 20 days of distraction — about 1 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.
