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Poster: 83Defect Management in Total Knee Arthroplasty*Ashok Rajgopal - Fortis Hospital,New Delhi - New Delhi, India*Email: arajgopal@hotmail.comWith the increase in the numbers of revision total knee arthroplasty (TKA) we encounterincreased instances of bone defects. Defects are classified based on their location, whethercontained or not, and their size. The principles of managing defects in the femur and tibial aresimilar and are described together. Contained defects can be dealt with by using bone cement orbone graft. If the defect involves more than 1/3 of the tibial plateau then a tibial stem isinserted. Large defects with one column intact are amenable to reconstruction by use ofimpaction bone grafting or trabecular metal augments. For massive defects involving both thecolumns the choice is between trabecular metal augments and allografts. An intra-medullarystem, mesh or locking plates can be used to achieve stability. Bony defects in the patella aredifficult to manage. If the implant is well fixed at the time of revision then it is best left alone.Patellar defects if contained can be bone grafted, if not contained then a smaller patellar implantcan be used. In case of large defects a patellectomy is done or extensor mechanism allograftsare indicated.Poster: 84Stem Cells in Orthopaedic and Traumatology: Clinical Results.*Oraldo Ricci - SS. FILIPPO E NICOLA HOSPITAL - Avezzano, ITALYMassimiliano Fini - University of L'Aquila - L'Aquila, Italy*Email: oraldo.ricci@tin.itAim of this presentation is to show the experience that our working group has developed withthe implantation of adult stem cells and growth factors in some orthopaedic and traumathicpathologies.file:///E|/ISTA2010-Abstracts.htm[12/7/2011 3:15:47 PM]