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102nd CONGRESS OF THE PIEMONTESE-LIGURIAN-LOMBARD SOCIETY OF ORTHOPEDICS AND TRAUMATOLOGY (S.P.L.L.O.T.) - Brescia September 9-10, 2005
NEW TECHNOLOGIES, MODERN INSTRUMENTARIUM IN ARTHROPLASTIC SURGERY
UPDATES ON HIP ARTHROPLASTY
Savarese A., Petrogalli R., Pasquali F.
Divisione di Ortopedia e Traumatologia Ospedale di Manerbio, Manerbio, Brescia
Aim. The authors report their experience with the metal-on-metal hip prosthesis (Conus stem, Fitmore cotyle) in treating dysplastic coxarthrosis in young patients. Options and limits to indications for minimally invasive surgery using this technique and tribologic alternatives are discussed.
Methods. From January 1999 to June 2005, 62 patients with various degrees of dysplastic coxarthrosis underwent total hip replacement performed using a minimally invasive technique and implantation of a metal-on-metal coupled prosthesis.
Results. Short- and mid-term outcomes were highly satisfactory. With the Conus stem, the difficulties in achieving correct anteversion with non-modular standard prostheses can be overcome.
Conclusion. The metal-on-metal coupled prostheses show no toxic effect and may permit a much longer survival of metal or ceramic prostheses coupled with polyethylene.