الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Genu varum is a common deformity associated with medial compartmental osteoarthritic knee with subsequent mechanical axis deviation and stress disturbances across the knee joint with medial compartmental loading which is aggravated by adduction moment during gait. This varus deformity is pathologically produced either by varus instability or fixed varus deformity of the osteoarthritic knee. Varus instability is either due to pathological bone changes or ligamentous elongation or both. Fixed varus deformity could be attributed to collapse of the bone medially with contracture of the medial soft tissues. Preoperative measurements of the degrees of varus deformity is so essential to overcorrect the deformity and putting the knee in net valgus position 5 degrees to shift the arc of the body weight to the healthy lateral compartment which is better done with CT – scanogram of both lower limb. Surgical techniques for correction of varus tibia has undergone many modification: the lateral closing wedge osteotomy, dome osteotomy proximal to the tibial tuberosity and a medial opening wedge tibial osteotomy.Recently, Ilizarov technique has been used for correction of varus tibia. Each of these techniques has its advantages and disadvantages.At the end of 1990s due to the introduction of fixation plate named Puddu into clinical practice, and relative simplicity of the technique the procedure of medial open-wedge osteotomy gained popularity. Lateral closing-wedge HTO was initially preferred, but medial opening-wedge HTO is becoming popular because it is simpler and allows adjustment in the coronal and sagittal planes. In addition, medial opening-wedge HTO avoids pos¬sible damage to the lateral aspect of the knee (ie, the proximal tibiofibular joint and the peroneal nerve).