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Abstract
Introduction
Hip dysplasia occurs due to inappropriate hip
biomechanics. this can cause early OA, which make challenge to
OrthopaediC surgeons in adult patients because of age limits for
arthroplasty. The major role of osteotomy in dysplastic hip is to
establish normal hip biomechanics by repositioning the hyaline
cartilage surfaces (Bombel!i 1993).
Osteotomies (whether femoral or pelvic) designed to
prevent OA in patients, may be effect.ive for many decades or
even permanently, if normal anatomy restored (Sombeflleral, 19’84).
Osteotomies around the hip can be divided into two
broad categories: reconstructive and salvage according to the
severity of the disease In general in reconstructive smgery the
biochemical concepts of containment, coverage, congruence.
center of rotation, abductor mechanics. version (torsion),
mechanical axes and limb length should be considered.
Thus, The message is becoming clearer in the late
19908: Hips that are not anatomically normal will n01 last lifetime,
especially if there are any preexisting anatomic abnormalities.
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