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J Arthroplasty. 2009 Sep;24(6 Suppl):48-53. doi: 10.1016/j.arth.2009.04.033. Epub 2009 Jun 24.

Clinical and radiographic results of 184 consecutive revision total knee arthroplasties placed with modular cementless stems.

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1
Department of Orthopaedics, University of Utah, Salt Lake City, Utah, USA.

Abstract

Clinical and radiographic outcomes of 184 consecutive revision total knee arthroplasties (TKAs) placed with cemented components and press-fit fluted cementless stems were reviewed at average follow-up of 49 months. Revision was performed for septic failure in 53 of 184 knees, periprosthetic fracture in 10 of 184 knees, and aseptic failure in 121 of 184 knees. The press-fit cementless stems were placed to tightly contact the endosteum of the metadiaphyseal area of the femur and tibia. No knees were re-revised for aseptic loosening. There were 15 failures (15/184, 8.2%): 13 were septic failures, 9 of which were recurrence of sepsis and 4 of which were new cases of sepsis. Average Knee Society knee score improved from 134.6 to 167.8 (P < .05). Revision TKA with modular cementless stems provided excellent fixation with no revisions for aseptic loosening. Re-revision for sepsis was the dominant failure mechanism with an overall rate of 7%. Given the increasing prevalence of revision TKA, sepsis prevention strategies should receive increased attention.

PMID:
19553076
DOI:
10.1016/j.arth.2009.04.033
[Indexed for MEDLINE]

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