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 .
Midterm comparison of posterior cruciate-retaining versus -substituting total knee arthroplasty using the Genesis II prosthesis. A multicenter prospective randomized clinical trial.
The purpose of the current study was to compare midterm outcomes of  posterior cruciate-retaining ( CR ) versus posterior cruciate-substituting ( PS ) procedures using the Genesis II total knee arthroplasty ( TKA ) system ( Smith and Nephew , Memphis , TN ) . Ninety-nine ( 99 ) CR and 93 PS TKA 's were analyzed in this prospect i ve , r and omized clinical trial . Surgeries were performed at seven medical centers by participating surgeons . Clinical outcomes ( Knee Society Score , Range of Motion , WOMAC , SF-12 , and Radiographic Findings ) , in addition to postoperative complications , were evaluated with a minimum follow-up of 5 years . Following data analysis , there were no significant differences in patient demographics or preoperative clinical measures between the two groups . At the latest follow-up interval , no significant differences were found between the CR and PS groups with regards to functional assessment , patient satisfaction , or postoperative complication . However , the PS group did display statistically significant improvements in range of motion when compared with the CR group . The results of this investigation would suggest that , while comparable in regards to supporting good clinical outcomes , the PS Genesis II design does appear to support significantly improved postoperative range of motion when compared with the CR design
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 .