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Online ISSN 1827-1707
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
Peveraro A. 1, Rabino A. 1, Ciclamini D. 2
1 Dipartimento di Ortopedia e Traumatologia Ospedale Civile di Asti, Asti
2 Scuola di Specializzazione in Ortopedia e Traumatologia Università degli Studi di Torino, Torino
Aim. Prosthetic hip resurfacing is not a novel concept. Metal-on-polyethylene coupled prostheses implanted in the 1970s and early 1980s produced poor outcomes. The results of implantation of metal-on-metal coupled devices in large case series with adequate follow-up periods are now beginning to emerge. The choice of a surgical technique consistent with the device’s biomechanics remains a vital consideration.
Methods. From 4 November 2004 to 7 June 2005, 9 ASR Depuy hip prostheses were implanted in 8 patients (1 bilateral implantation) at the Department of Orthopedics and Traumatology, Asti Community Hospital. The instrumentarium furnished by the prosthesis manufacturer was used to place the devices.
Results. The small number of implants and short follow-up periods do not provide enough data for achieving a statistically significant analysis of device survival. What can be stated is that no mobilization or dislocation of the prostheses has been observed to date. Patient satisfaction with the outcome was excellent.
Conclusion. Based on our experience and the clinical outcomes, we believe that the metal-on-metal surface devices with a cemented femoral component may ensure good implant stability and good resistance to component wear comparable with those offered by conventional prostheses.