A New Double Elevating Osteotomy in Management of Severe Neglected Infantile Tibia Vara using the Ilizarov Technique

Authors:
  • HSHisham Shalaby
    Hisham Shalaby
  • SESameh El-Kawy
    Sameh El-Kawy
  • MTMoutaz Thakeb
    Moutaz Thakeb
  • EEElhussein Elmoatasem
    Elhussein Elmoatasem
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Abstract
Neglected infantile Tibia Vara is a very challenging clinical problem with many technical problems including distorted joint line secondary to the medial tibial plateau depression, obesity leading to difficulty in exposure, performing osteotomies and difficulty in osteotomy fixation. The aim of this study is to evaluate the clinical and radiological results of treatment of severe neglected infantile Tibia Vara using a new osteotomy to elevate the depressed medial tibial plateau in conjunction with the Ilizarov technique. Seven tibias in five patients were included in this study. These were all Stage V and VI according to Langenskiold and Riska classification. The average age at surgery was 11.6 years (ranging from 8 to 15), and the average follow-up was 6.2 years (ranging from 3 to 10). A new double osteotomy technique was used to elevate the depressed medial tibial plateau and correct the varus deformity. Correction was done gradually using the Ilizarov Frame. The results were assessed clinically and radiologically. The femoral shaft -- tibial shaft angle improved from an average of 36 degrees of varus preoperatively to 4 degrees of varus. The femoral condyle-tibial shaft angle improved from an average of 58 degrees to 83 degrees. The angle of depressed medial tibial plateau improved from an average of 53 degrees to 10 degrees. We believe that our new double elevating osteotomy in conjunction with Ilizarov technique is an excellent modality for patients with stage V and VI according to the Langenskiold and Riska classification. The advantages of this technique include correction of the deformity with simultaneous correction of the joint architecture, immediate weight bearing, and avoidance of excessive dissection needed for internal fixation.

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