ADDITION TIBIAL OSTEOTOMY USING DEHYDRATED CORTICOCANCELLOUS ALLOGRAFTS: LONG-TERM RESULTS

Purpose: Development of knee arthroplasty has led surgeons to reconsider their tibial osteotomy techniques. Closed wedge subtraction which can lead to a deformed epiphyseal callus and an oblique joint space have been progressively replaced by more anatomic open wedge techniques. The bone gap created by open osteotomy is general filled with an iliac autograft, implying morbidity of the harvesting site, or inert material. For the last eleven years, we have used dehydrated corticocancellous grafts which maintain the collagenous framework and mechanical properties as well as the ingrowth properties close to autografts without the inconvenience of bone harvesting. After making the horizontal osteotomy cut above the tubercle, tricortical allografts are fashioned at the operative site and implanted without impaction. Fixation is achieved by staples or plate screwing. Mechanical stability is always achieved within the usual time allowing weight bearing at 40 days.Material and methods: Twenty patients who underwen...