Deformity correction restores the normal alignment and length of a limb. Some deformities start in childhood, such as bow legs, knock knees or a short leg. Others follow injury: a fracture that healed in the wrong position (malunion), or one that never healed (non-union). Correction can be done in one step with plates or nails, or gradually with an external frame (such as the Ilizarov ring fixator) that moves the bone a fraction of a millimetre each day.
When is it needed?
- Bow legs and knock knees
- Leg length discrepancy
- Malunited fractures
- Non-union (fractures that did not heal)
- Bone infection after fractures
- Severe open fractures needing external fixation
How it is done
- 1Measuring
Full-length standing X-rays show the exact angle and length to correct.
- 2Choosing the method
Single-stage correction with internal fixation, or gradual correction with an external frame.
- 3Gradual adjustment
With a frame, small daily adjustments let new bone form as the limb straightens or lengthens.
- 4Consolidation
The frame is removed once the new bone is strong.
Advantages
- Accurate correction planned on X-rays
- Lengthening and straightening in the same treatment
- Solutions for difficult and infected fractures
- Experience in both children and adults
Recovery
- WeeksDaily pin-site care and walking with the frame.
- MonthsAbout one month in the frame for every centimetre lengthened, as a rough guide.
- After removalPhysiotherapy to restore full movement.
Common questions
Can I walk with an external frame?
Yes. Most patients walk with crutches while wearing the frame.
Is the daily adjustment painful?
It is usually only mildly uncomfortable. We teach you and your family how to do it.
Can an old malunited fracture be fixed?
In many cases yes, by cutting the bone and realigning it in the correct position.
This information is general and does not replace a medical consultation. Every case is assessed individually.
