الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The most common cause of end-stage ankle arthritis is trauma. Post traumatic ankle arthritis is accepted as the most common cause of ankle arthritis, with reports ranging from 70% to 80% of all ankle arthritis. Factors contributing to the development of post traumatic ankle arthritis are the initial cartilage damage, mal reduction, nonunion, infections, and instability. In a retrospective study, Valderrabano and colleagues found that 55% of patients with posttraumatic ankle arthritis presented with a varus malalignment, whereas 8% had valgus malalignment Nonoperative treatments, including orthotics, wedges, shoe modifications, anti-inflammatory medications, and activity modification, are usually not successful Although the gold standard treatment for ankle arthrosis remains ankle arthrodesis, the significant loss of motion in the ankle is limiting and may lead to the development of arthritis in adjacent joints in the hind foot and forefoot Total ankle replacements (TAR) used only in older, low-demand patients with neutral alignment and intact stabilizing ligaments. Ankle arthroscopy is indicated in acute, recurring-acute, and chronic ankle pain to detect the possible presence of anterior ankle impingement (bony or soft tissue), syndesmotic injury, osteochondral defects and loose bodies Supramalleolar osteotomy has been used for varus and valgus as well as sagittal and rotational deformities. Fibular osteotomy, Calcaneal slide osteotomy and osteotomies of the medial arch can be also used as joint preserving procedure. Our study is designed for evaluation of the effect of joint preserving procedures in young patient with asymmetrical ankle arthritis. The main aim of this study was to evaluate of low tibial osteotomies for asymmetrical ankle arthritis regarding the improvement of alignment and its effect on symptoms This prospective observational case series study was conducted in the Assiut university hospital, orthopedic and traumatology department. This study was conducted on 12 patients with symptomatic ankle OA with varus or valgus ankle deformity on X-ray with asymmetrical ankle arthritis.