Finally , with use of a variety of vali date d measures , there was no difference between the two groups in terms of functional status at two , eight , and ten years , regardless of the measure used .
A less expensive all-polyethylene component as part of a total knee arthroplasty has results equivalent to those obtained with a cemented metal-backed tibial component .
BACKGROUND The cost of the implant as part of a total knee arthroplasty accounts for a substantial portion of the costs for the overall procedure : all-polyethylene tibial components cost considerably less than cemented metal-backed tibial components .
We performed a systematic review of the literature to determine whether the clinical results of lower-cost all-polyethylene tibial components were comparable with the results of a more expensive metal-backed tibial component .
[Comparative study of fixation mode in total knee arthroplasty with preservation of the posterior cruciate ligament].
PURPOSE OF THE STUDY We performed a prospect i ve r and omized study to compare two fixation modes , with and without cement , for total knee arthroplasty . MATERIAL AND METHODS The study series was composed of 96 cemented or noncemented total knee arthroplasties performed between May 1993 and October 1995 . The only difference was the diamond interface used for cemented prostheses and the mesh interface used for uncemented prostheses . The operator was unaware of the type of fixation until the bone slices had been obtained . We assessed outcome in 73 cases with a mean follow-up of 27 months . The two population s were comparable for preoperative clinical status , bone tophicity and surgical procedure . RESULTS The mean duration of the operation was sgnificantly longer ( > 10 min ) for the cemented protheses . The complication rates were comparable but we did have two mobilizations of the tibial implant in the noncemented group . The total scores ( 127 + /- 29 in the cemented group versus 135 + /- 20 in the uncemented group ) were significantly different . There were however more cases with degradation of the controlateral knee in the cemented group although the difference was not significant . When these cases were excluded from the analysis , the total scores for two groups were similar ( 143 and 140 respectively ) . Radiographic outcome was quite different with mobilization of the tibial implant in 2 cases and the rate of lucent borders was significantly higher in the noncemented group . DISCUSSION AND CONCLUSION While the clinical outcome was comparable , the quality of the fixation was significantly better with cemented arthroplasty , which remains the gold st and ard
Finally , with use of a variety of vali date d measures , there was no difference between the two groups in terms of functional status at two , eight , and ten years , regardless of the measure used .
A less expensive all-polyethylene component as part of a total knee arthroplasty has results equivalent to those obtained with a cemented metal-backed tibial component .
BACKGROUND The cost of the implant as part of a total knee arthroplasty accounts for a substantial portion of the costs for the overall procedure : all-polyethylene tibial components cost considerably less than cemented metal-backed tibial components .
We performed a systematic review of the literature to determine whether the clinical results of lower-cost all-polyethylene tibial components were comparable with the results of a more expensive metal-backed tibial component .