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 .
Deep-Dish Congruent Tibial Component Use in Total Knee Arthroplasty: A Randomized Prospective Study
One hundred seventy-six patients with osteoarthritis of the knee were r and omized prospect ively into two groups . In both groups the posterior cruciate ligament was released from its femoral attachment . In one group a posterior stabilized tibial component was used whereas in the other group a deep-dish tibial polyethylene component was inserted ( Genesis II ) . The surgical and perioperative technique was identical in both groups and all the implants were cemented to their respective bones . Patients began range of motion exercises within the first few hours after surgery and were allowed weightbearing to tolerance beginning on the first postoperative day . At followup there was no statistical difference in the mean range of flexion ( approximately 116 ° ) , ability to ascend and descend stairs in a bipedal manner ( 80 % ) , pain scores , knee scores ( 94 points ) , stability , or the lack of anterior knee pain . Postoperative implant alignment in the sagittal and coronal planes and on Merchant skyline views was excellent in both groups . There was only one lateral release required and that was in one patient who received a deep-dish component . Using deep-dish implant obviates the need to resect intercondylar femoral bone , decreasing the potential for fracture and maximizing bone volume should revision be necessary in the future
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 .