抄録
This paper describes the surgical techniques used for revision total knee arthroplasty (TKA) in 11 revisions performed from 1997 to 2003. The case records were studied retrospectively. The mean age at revision TKA was 78.6 years (range 72 to 85 years). The average time to revision TKA was 6.9 years (range 6 moths to 17 years). The most frequent reasons for failure were polyethylene wear and metallosis. A posterior stabilized prosthesis was used in 7 knees and a nonlinked constrained prosthesis was implanted in 4 knees. An extension stem was regularly used for fixation of the tibial component. A stemmed femoral component was used in 4 knees with massive bone loss in the distal femur. The average JOA score improved from 52.3 to 71.8. Careful preoperative planning and appropriate selection of implant design are important for a successful outcome.
