Deformity correction
Genu recurvatum (back-knee) before & after — Dr. Donghoon (DALRI)
Once surgery and the full recovery period are complete, what changes is: Sagittal-plane planning from standing radiographs
Before: what is recorded
Before surgery the team documents the starting point of everyone considering genu recurvatum (back-knee) — Recurvatum from post-traumatic or growth-plate bone deformity · Pain or profile-appearance concerns — together with radiographs, alignment measurements and the patient's own goal, so there is a fixed baseline to compare against.
How the change is measured
Deformity is quantified in degrees on standing full-leg weight-bearing radiographs, comparing the mechanical axis before and after surgery along with knee or ankle gap and rotational profile. The goal is an axis that passes back through the centre of the knee.
Timeline from surgery to normal life
- 01Day of surgery: the bone is cut and realigned to the pre-planned angle, with the axis confirmed on intra-operative imaging.
- 02Weight-bearing is controlled to instruction until union is solid.
Limits and what cannot be guaranteed
- 01Bone lengthening is major surgery. Outcome and recovery time depend on bone quality, age, weight and how disciplined the patient is with rehabilitation, so identical results cannot be guaranteed.
- 02Results differ from person to person: bone-forming speed, age, weight, medical history and rehabilitation discipline all change both the timeline and the numbers achieved.
- 03The figures on this page are the general ranges the hospital publishes — not a guarantee and not an individual diagnosis. Only your own imaging can set your expected range.
- 04This site does not publish individual patient photographs. Ask the hospital directly at your consultation if you want to see comparison images or case radiographs.
Frequently asked questions
Does every case need surgery?
No. If it is purely ligamentous and symptom-free, strengthening physiotherapy comes first. When the cause is bony deformity with pain or clear malalignment, realignment surgery gives the durable result.
When are the results of genu recurvatum (back-knee) visible?
Day of surgery: the bone is cut and realigned to the pre-planned angle, with the axis confirmed on intra-operative imaging. Weight-bearing is controlled to instruction until union is solid.
How is the before and after of genu recurvatum (back-knee) measured?
Deformity is quantified in degrees on standing full-leg weight-bearing radiographs, comparing the mechanical axis before and after surgery along with knee or ankle gap and rotational profile. The goal is an axis that passes back through the centre of the knee.
Is the result of genu recurvatum (back-knee) permanent, and what cannot be guaranteed?
Bone lengthening is major surgery. Outcome and recovery time depend on bone quality, age, weight and how disciplined the patient is with rehabilitation, so identical results cannot be guaranteed. Results differ from person to person: bone-forming speed, age, weight, medical history and rehabilitation discipline all change both the timeline and the numbers achieved. The figures on this page are the general ranges the hospital publishes — not a guarantee and not an individual diagnosis. Only your own imaging can set your expected range. This site does not publish individual patient photographs. Ask the hospital directly at your consultation if you want to see comparison images or case radiographs.