2005 Volume 54 Issue 1 Pages 63-67
From 1991 through 2003, we performed 15 isolated tibial insert exchanges on 12 patients (four men and eight women, average age was 72.6 years, three patients had bilateral revision) without loosening of any of the components and a history of infection. The duration of follow-up averaged one year and eleven months (range: two months to six years and nine months). The implants had been in situ for an average of five years and eleven months (range: one month to ten years and eleven months (range: one month to ten years and ten months) at the time of the insert exchange. The indications for insert exchange were wear of insert (11 patients) and mismatch of femoral component (one patient). Seven patients had problems (such as instability or malalignment, mainly due to surgical technique) just after primary operation. Surgical technique and careful planning before operation are recommended for achieving good clinical reslts.
