Mobility and Contact Mechanics of a Rotating Platform Total Knee Replacement

2011 ◽  
pp. 81-99
Author(s):  
Jason K. Otto ◽  
John J. Callaghan ◽  
Thomas D. Brown
Keyword(s):  
Total Knee Replacement ◽  
Contact Mechanics ◽  
Knee Replacement ◽  
Rotating Platform ◽  
Total Knee

Mobility and Contact Mechanics of a Rotating Platform Total Knee Replacement

2012 ◽  
Vol 9 (1) ◽  
pp. 104266
Author(s):  
Jason K. Otto ◽  
John J. Callaghan ◽  
Thomas D. Brown ◽  
K. Trier ◽  
S. W. Dean
Keyword(s):  
Total Knee Replacement ◽  
Contact Mechanics ◽  
Knee Replacement ◽  
Rotating Platform ◽  
Total Knee

Cemented Rotating-Platform Total Knee Replacement

2010 ◽  
Vol 92 (7) ◽  
pp. 1635-1639 ◽  
Author(s):  
John J Callaghan ◽  
Christopher W Wells ◽  
Steve S Liu ◽  
Devon D Goetz ◽  
Richard C Johnston
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Rotating Platform ◽  
Total Knee

Effects of interference assembly of a tibial insert on the tibiofemoral contact mechanics in total knee replacement

2019 ◽  
Vol 233 (9) ◽  
pp. 948-953 ◽  
Author(s):  
Zhenxian Chen ◽  
Jing Zhang ◽  
Yongchang Gao ◽  
Shibin Chen ◽  
Xuan Zhang ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Contact Mechanics ◽  
Knee Replacement ◽  
Articular Surface ◽  
Peak Load ◽  
Element Model ◽  
Fixed Bearing ◽  
Locking Mechanism ◽  
Tibial Insert ◽  
Total Knee

Tibial locking mechanism design is adopted to limit the backside micromotion in fixed-bearing total knee replacement. However, the effect of the interference assembly of a tibial insert on the tibiofemoral contact mechanics was usually ignored. Finite element model of a fixed-bearing total knee replacement with full peripheral locking mechanism was established to simulate the interference assembly of the tibial insert, and the corresponding effects on the tibiofemoral contact mechanics were predicted. Due to the interference assembly of the tibial insert, a maximum Mises stress of 3.24 MPa was found for the tibial insert before loading. Furthermore, the contact stress was increased by 8.77%, and the contact area was decreased by 5.43% under peak load. The interference assembly of the tibial insert in a fixed-bearing total knee replacement changed the tibiofemoral contact mechanics. This study indicated that the level of interference fit should be cautiously designed for the tibial locking mechanism in fixed-bearing total knee replacement for balancing the articular surface wear and the backside wear of the modular tibial insert.

scholarly journals Enhanced patella tracking in rotating platform total knee replacements, friend or foe? A case of iliotibial band impingement by rotating polyethylene insert

2019 ◽  
Vol 26 (2) ◽  
pp. 99-104
Author(s):  
Michelle Kar Lam Li ◽  
Lawrence Chun Man Lau ◽  
Yuk Wah Hung ◽  
Ka Bon Kwok ◽  
Alexander Pak Hin Chan ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Knee Kinematics ◽  
Iliotibial Band ◽  
Polyethylene Insert ◽  
Rotating Platform ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Total Knee ◽  
Patella Tracking

Rotating platform total knee replacement implants have been marketed to allow more precise approximation of normal knee kinematics and enhance patella tracking. At liberty of rotation, the distinct mobile polyethylene insert design does have its pitfalls in spite of purported merits. We report a case of lateral knee pain following rotating platform total knee replacement, attributable to iliotibial band impingement by the rotating polyethylene insert. Prompt treatment via arthroscopic release circumvented a traumatic and costly revision procedure.

Cemented Rotating-Platform Total Knee Replacement

2005 ◽  
Vol 87 (9) ◽  
pp. 1995-1998 ◽  
Author(s):  
John J. Callaghan ◽  
Michael R. OʼRourke ◽  
Michael F. Iossi ◽  
Steve S. Liu ◽  
Devon D. Goetz ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Rotating Platform ◽  
Total Knee

CEMENTED ROTATING-PLATFORM TOTAL KNEE REPLACEMENT

2005 ◽  
Vol 87 (9) ◽  
pp. 1995-1998
Author(s):  
JOHN J. CALLAGHAN ◽  
MICHAEL R. OʼROURKE ◽  
MICHAEL F. IOSSI ◽  
STEVE S. LIU ◽  
DEVON D. GOETZ ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Rotating Platform ◽  
Total Knee
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