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Ankle arthrosis is becoming more and more common. The search for solutions that preserve joint function has led to a new generation of prosthesis with three components and more degrees of freedom. This paper presents the results achieved for ten patients treated with the HINTEGRA Prosthesis (Integra, New Deal), through collaborative action between the Foot and Ankle Groups of the Orthopedics and Traumatology divisions of Escola Paulista de Medicina, Unifesp, and the School of Medicine of the University of São Paulo (USP). The ten patients (six women and four men, aged between 29 and 66 years), underwent a surgical procedure consisting of Hintermann's technique, between January and June 2005. They were evaluated at prearranged intervals, and the data were subjected to statistical analysis. The surgery led to a significant improvement in ankle mobility. Radiological evaluation showed no signs of loosening or failure in the prosthetic components in any of the patients studied. Although the complication rate in our sample was high, it was equivalent to the rates found by other authors, and directly represents the learning curve associate with this kind of procedure. Four years after the procedure, it was found that the patients pain levels had significantly decreased, and that their functional patterns had significantly improved, with AOFAS and Hintermann scores indicating results that were excellent for 20%, good for 70% and poor for 10%. Treatment of ankle arthritis by means of total arthroplasty using the HINTEGRA prosthesis was capable of providing good results over an average observation period of four years.

A artrose do tornozelo vem se tornando mais comum a cada dia. A busca por solucoes que preservem a funcao articular fez surgir uma nova geracao de proteses com tres componentes e maior liberdade de movimento. Neste trabalho, apresentam-se os resultados obtidos em 10 pacientes tratados com a protese HINTEGRA (Integra, New Deal), em acao conjunta dos Grupos do Tornozelo e Pe do DOT da Unifesp-Escola Paulista de Medicina e IOT da Faculdade de Medicina da USP-Universidade de Sao Paulo. Os 10 pacientes (seis mulheres e quatro homens), com idade variando de 29 a 66 anos, foram submetidos ao tratamento cirurgico segundo a tecnica de Hinterman entre janeiro e junho de 2005. Foram avaliados em intervalos predeterminados e os dados foram submetidos a analise estatistica. A mobilidade do tornozelo apresentou melhora significante com a cirurgia realizada. Radiologicamente, nao foram detectados sinais de soltura ou falhas nos componentes prosteticos de nenhum dos pacientes estudados. A taxa de complicacoes nessa amostra foi alta, mas equivalente as de outros autores e representa diretamente a curva de aprendizado relacionada com esse tipo de procedimento. Ao final de quatro anos, observaram-se significativa reducao da dor e melhora do padrao funcional dos pacientes com os escores da AOFAS e de Hinterman, apontando para 20% de excelentes, 70% de bons e 10% de maus resultados. O tratamento da artrose do tornozelo atraves da artroplastia total com o modelo HINTEGRA, foi capaz de oferecer bons resultados no tempo medio de observacao de quatro anos.