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All-polyethylene versus metal-backed and stemmed tibial components in cemented total knee arthroplasty
ADALBERTH G; NILSSON KG; BYSTROM S
J BONE JOINT SURG BR , 2001, vol. 83, n° 6, p. 825-831 Doc n°: 101785 Localisation : Documentation IRR Descripteurs : DE561 - TRAITEMENT CHIRURGICAL - GENOU We studied the quality of fixation of the tibial component using radiostereometric analysis (RSA) in 40 patients who had undergone a cemented Freeman-Samuelson total knee arthroplasty. They were prospectively randomised to either a stemmed metal-backed (MB) or non-stemmed all-polyethylene (AP) tibial component. The articulating geometry of the implants was identical, as was the operative technique and the postoperative regime. The study showed no complications of fixation using AP tibial components, and the migration was the same as that of their metal-backed counterparts. There was no bony collapse or increased subsidence of any part of the tibial component or increased incidence of radiolucent lines in the knees with AP components. Most AP implants were stable between one and two years after surgery, a finding known to be of positive prognostic significance when predicting future aseptic loosening. Langue : ANGLAIS Identifiant basis : 2001217739 |
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