Introduction to Polyethylene Inserts

What is/are Polyethylene Inserts?

Polyethylene Inserts - The present study investigated the response of patients (quality of life, mobility and pain management) with titanium/hydroxyapatite-coated implants with polyethylene inserts. ^[1] 3%, wear of polyethylene inserts — 1. ^[2] However, the number and variety of polyethylene inserts and articulations have continued to evolve in an attempt to better replicate native knee kinematics or provide additional constraint. ^[3] Wear at the contact area between femoral metal component and the polyethylene inserts in TKR is recognized as one of the foremost causes of prosthesis failure and necessity of revision surgery. ^[4] Only Unicondylar knee Arthroplasty gives the ability to sit cross legged (most Total knees are not allowed to sit cross legged for fear of exaggerated wear and those that are have a unacceptable percentage of spin offs or dislocation of polyethylene inserts) 3. ^[5] OBJECTIVE This study evaluates the effects of the posterior slope of the tibia on contact stresses in polyethylene inserts and articular cartilage using finite element analysis. ^[6] In the current study, we performed a compression test and a finite element analysis of the mechanical forces produced in the tibial post in posterior-stabilized knee prostheses in order to develop a specification for the tibial posts found in the polyethylene inserts of PS knee prostheses. ^[7]

Tibial Polyethylene Inserts

Retrieved tibial polyethylene inserts were analyzed for screw hole impression and mode of wear. ^[1] Standard tibial polyethylene inserts were used. ^[2]