A femoral osteotomy is a surgical procedure where the femur (thigh bone) is cut and the bone angled differently in an attempt to improve the mechanics of the leg.
With regard to the position, a femoral osteotomy can be:
- proximal (upper end of the bone) or
- distal (lower end of the bone)
With regard to the type, a femoral osteotomy can be a:
- wedge osteotomy - where a wedge of bone is cut, and the bone re-angled. There are two types of wedge osteotomy -
- 'opening wedge' osteotomy or hemicallotasis) or
- 'closing wedge' osteotomy
- de-rotational osteotomy, where the bone is cut through and the top and bottom half rotated in relation to one another
Wedge osteotomy is usually for cases of arthritis, where the angle of the knee is abnormal (eg bow legs or knock knees).
De-rotational osteotomy is for 'torsion' (twisting) of the femur, which can cause deformity and patellar tracking problems.
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