determine polyethylene deformation in well-functioning meniscal bearing PCL-retaining total knee prosthesis a quantitative stereophotogrammetric analysis was carried out over 5 years' follow-up. Polyethylene plastic deformation was obtained by tracking the intermarker distance variations of five tantalum beads inserted into the polyethylene prior to surgery in a known position. Plastic deformation occurred in the posteromedial part of the meniscal bearing. Radiostereometric analysis was a useful tool to monitor the load distribution in vivo on the polyethylene of this meniscal bearing prosthesis. This analysis revealed a very similar pattern of plastic deformation in the polyethylene insert of this prosthesis design to the wear pattern revealed with different methodologies in PCL-retaining fixed-bearing prosthesis.
Radiostereometric measurement of polyethylene deformation pattern in meniscal bearing TKR at 5 years follow-up / Russo A;Bragonzoni L;Trozzi C;Iacono F;Visani A;Marcacci M. - In: KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY. - ISSN 0942-2056. - STAMPA. - 16:2(2008), pp. 142-147. [10.1007/s00167-007-0429-2]
Radiostereometric measurement of polyethylene deformation pattern in meniscal bearing TKR at 5 years follow-up.
RUSSO, ALESSANDRO;BRAGONZONI, LAURA;MARCACCI, MAURILIO
2008
Abstract
determine polyethylene deformation in well-functioning meniscal bearing PCL-retaining total knee prosthesis a quantitative stereophotogrammetric analysis was carried out over 5 years' follow-up. Polyethylene plastic deformation was obtained by tracking the intermarker distance variations of five tantalum beads inserted into the polyethylene prior to surgery in a known position. Plastic deformation occurred in the posteromedial part of the meniscal bearing. Radiostereometric analysis was a useful tool to monitor the load distribution in vivo on the polyethylene of this meniscal bearing prosthesis. This analysis revealed a very similar pattern of plastic deformation in the polyethylene insert of this prosthesis design to the wear pattern revealed with different methodologies in PCL-retaining fixed-bearing prosthesis.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.