Deformity correction
Knock-knee correction (genu valgum) before & after — Dr. Donghoon (DALRI)
Once surgery and the full recovery period are complete, what changes is: Corrected primarily with internal fixation through minimal incisions · Every case is analysed first to locate the deformity — tibia, femur or both · Very severe cases can be corrected with an external fixator
Before: what is recorded
Before surgery the team documents the starting point of everyone considering knock-knee correction (genu valgum) — Knock-knees causing thigh rubbing, lateral knee pain or appearance concerns · Patients for whom braces or physiotherapy have not worked — 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.
- 02Internal fixation means no external hardware to carry and a quicker recovery.
- 03Weight control reduces knee load and helps hold the corrected alignment.
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
Can knock-knees be treated without surgery?
In adults it usually does not work, because the deformity is structural. Braces and physiotherapy may ease pain but do not change bone alignment; permanent correction requires osteotomy.
When are the results of knock-knee correction (genu valgum) visible?
Day of surgery: the bone is cut and realigned to the pre-planned angle, with the axis confirmed on intra-operative imaging. Internal fixation means no external hardware to carry and a quicker recovery. Weight control reduces knee load and helps hold the corrected alignment.
How is the before and after of knock-knee correction (genu valgum) 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 knock-knee correction (genu valgum) 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.