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

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

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.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Arthroplasty, Replacement, Knee / adverse effects*
  • Arthroplasty, Replacement, Knee / instrumentation*
  • Arthroplasty, Replacement, Knee / methods
  • Bone Cements
  • Female
  • Humans
  • Incidence
  • Knee Joint / diagnostic imaging*
  • Knee Joint / physiology*
  • Knee Joint / surgery
  • Knee Prosthesis / adverse effects*
  • Knee Prosthesis / microbiology
  • Male
  • Middle Aged
  • Prosthesis Design
  • Prosthesis Failure*
  • Prosthesis-Related Infections / complications
  • Prosthesis-Related Infections / epidemiology
  • Prosthesis-Related Infections / prevention & control
  • Radiography
  • Reoperation
  • Retrospective Studies
  • Treatment Outcome

Substances

  • Bone Cements