7055
document
Matched-pair analysis of all-polyethylene versus metal-backed tibial components . Forty-eight matched pairs of osteoarthritic knees from patients who underwent primary total knee arthroplasty with a round-on-round , Apollo Knee System were studied to evaluate the outcome between all-polyethylene and metal-backed tibial components . Patients were matched for patient factors , preoperative deformities , cruciate salvage or sacrifice , and surgical technique . At the last follow-up ( average , 38.4 months ) , there was no statistically significant difference in terms of knee scores , patient self-assessment , and radiographic outcomes . No component required revision , and no revisions were pending . Maintenance of these results over time would project into better long-term success for all-polyethylene tibial components because of the amount of wear and osteolysis with current modular metal-backed tibial components . We advocate the use of a more cost-effective all-polyethylene tibial component in elderly patients ( > 70 years old ) who are not likely to need the versatility of exchange of a modular polyethylene insert because of wear .
7056
Intervention_Physical
all-polyethylene versus metal-backed tibial components
7057
Intervention_Pharmacological
all-polyethylene and metal-backed tibial components
7058
Intervention_Pharmacological
all-polyethylene tibial components
7059
Intervention_Pharmacological
metal-backed tibial components
7060
Intervention_Pharmacological
all-polyethylene tibial component
7061
Outcome_Physical
knee scores
7062
Outcome_Physical
patient self-assessment
7063
Outcome_Physical
radiographic outcomes
7064
Participant_Sample-size
Forty-eight
7065
Participant_Condition
osteoarthritic
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Participant_Condition
deformities
7067
Participant_Age
elderly
7068
Participant_Age
> 70