Alumina ceramic segmental replacement prosthesis for osteosarcoma in distal femur - A radiographic analysis.:A radiographic analysis

概要

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Limb salvage procedure with alumina ceramic segmental replacement prosthesis was performed in 5 patients of osteosarcoma arising in distal femur. The functional results of those patients with an average follow-up of 18 months were evaluated according to Enneking's criteria and the overall rating showed one good result, 3 fair and one poor.Radiographic data were observed in terms of stem/bone interface radiolucency and extracortical bone formation on the segmental part of the prosthesis. Stem radiolucent lines were common in this series, and in addition, resorption of cortical bone in stem rotation stopper was noticed remarkably during first one year. After that extracortical bone formation on the segmental part increased with time and it seemed to be useful for stabilizing the prosthesis. However, it is suggested that further improvement is needed in prosthetic design in order to gain better functional results by strengthening implant fixation.
西日本整形・災害外科学会の論文