Experience with an all-polyethylene total knee arthroplasty in younger, active patients with follow-up from 2 to 11 years.
There are few modern reports that document the results of all-polyethylene (all-poly) tibial components in younger, active patients. The potential benefits of this design are the elimination of backside wear and lower implant cost than modular, metal-backed components. Nonetheless, since the mid 1980s, modular, metal-backed tibial trays have dominated the total knee arthroplasty market based on finite-element analysis studies that demonstrated superior force distribution compared with conventional all-poly components. As a result, backside wear has become an emerging problem and refocused design efforts on unitized components. Our clinical experience indicates that an all-poly tibial component fixed with cement can provide excellent performance and survivorship even in younger, active patients at intermediate follow-up.
Ranawat
Amar S
AS
Lenox Hill Hospital, New York 10021, USA.
Mohanty
Shubhranshu S
SS
Goldsmith
Scott E
SE
Rasquinha
Vijay J
VJ
Rodriguez
Jose A
JA
Ranawat
Chitranjan S
CS
D000367:Age Factors; D019645:Arthroplasty, Replacement, Knee; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D020959:Polyethylene; D011474:Prosthesis Design; D013997:Time Factors
D020959:Polyethylene