The Knee, ISSN: 1873-5800, Vol: 22, Issue: 5, Page: 429-34
Stemmed femoral implants show lower failure rates in revision total knee arthroplastyNelson, Charles L; Vanushkina, Maria; Irgit, Kaan; Strohecker, Kent; Bowen, Thomas R
Stemmed femoral implants are not universally used in revision total knee arthroplasty. The aim of this study was to evaluate whether the re-revision rate would be greater for revision total knees performed without stemmed femoral implants compared with revision total knees performed with stemmed femoral implants.
All revision cases performed at a single institution between 2004 and 2011 were retrospectively reviewed. A total of 130 revision total knee arthroplasty procedures (63 Group 1; 67 Group 2) met the inclusion criteria.
Revisions performed without femoral stems failed more often than revisions with femoral stems (44% vs 9%, p < 0.001) despite more severe pre-operative bone loss in groups that were revised with stems (p < 0.05).
We recommend that femoral stems be used routinely in procedures where a femoral implant is revised following a prior total knee arthroplasty.