Total Knee Arthroplasty After Failed Distal Femoral Varus Osteotomy Using Selectively Stemmed Posterior Stabilized Components

Yona Kosashvili, Allan E. Gross, Michael G. Zywiel, Oleg Safir, Dror Lakstein, David Backstein

Research output: Contribution to journalArticlepeer-review

Abstract

The purpose of this study was to evaluate the outcomes of patients treated with total knee arthroplasty (TKA) for progression of arthritis after distal femoral varus osteotomy. Twenty-two consecutive distal femoral varus osteotomies converted to TKA were reviewed at a mean follow-up of 5 years (range, 2-14 years). Stemmed femoral or tibial components were used in 5 knees with poor bone quality, while the remaining 17 knees were treated with unstemmed components. The mean Knee Society knee and function scores in surviving knees were 91 points (range, 67-100 points) and 64 points (range, 50-70 points) respectively at final follow-up. Two patients underwent revision arthroplasty for polyethylene wear and component loosening at 8 and 11 years after the index arthroplasty, respectively. Standard components provide satisfactory stability in TKA after distal femoral varus osteotomy after appropriate ligamentous balancing, without the need for stemmed or highly constrained components in the majority of patients.

Original languageEnglish
Pages (from-to)738-743
Number of pages6
JournalJournal of Arthroplasty
Volume26
Issue number5
DOIs
StatePublished - Aug 2011
Externally publishedYes

Keywords

  • Distal femoral varus osteotomy
  • Fresh chondral allograft
  • Stemmed components
  • Total knee arthroplasty

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