Medial
femorotibial osteoarthritis of the knee with genu varum is almost always
associated with metaphyseal varus. Ideally, this deformity should be corrected
at its very site, i.e. in the medial tibial metaphyseal area, by medial
opening tibial osteotomy.
This osteotomy restores the anatomy of the tibial metaphysis thereby facilitating
subsequent arthroplasty, unlike lateral closing tibial osteotomy which is
responsible for metaphyseal malunion.
Use of the Anthony K system eliminates
all of the classical disadvantages of medial opening tibial osteotomy and
allows :
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