Cemented rotating-platform total knee replacement. A nine to twelve-year follow-up study.

摘要: Background: Although the LCS (low contact stress) rotating-platform mobile-bearing knee replacement has been used extensively, there have few intermediate or long-term clinical and radiographic follow-up studies evaluating device. The purpose of this study was to report nine twelve-year results a consecutive series patients who had primary total performed with Methods: Between November 1985 1988, senior author (R. C. J.) 119 arthroplasties in eighty-six femoral tibial components Townley all-polyethylene dome patellar component. All were fixed cement. average age at time operation seventy years (range, thirty-seven eighty-eight years). Fifty-two (seventy-six knees) female, thirty-four (forty-three male. evaluated ratings analysis twelve following replacement. Results: At follow-up, sixty-four (eighty-six alive, eighteen (twenty-eight died, four (five lost follow-up. Of 114 knees eighty-two for whom final outcome known, none required reoperation dislocation prosthesis. For forty-five (sixty-six returned examinations years, functional Knee Society 30 points 2 70 points) 44 0 80 preoperatively 90 63 102 75 100 evaluation. Hospital Special Surgery rating 57 28 84 59 97 active range flexion from degrees 10 degrees) 15 120 Seven sixty-six painful anteriorly. There no periprosthetic osteolysis evidence loosening on radiographs. Conclusions: After cemented found be performing well, durable results.