Mobility and Contact Mechanics of a Rotating Platform Total Knee Replacement

Author(s):  
Jason K. Otto ◽  
John J. Callaghan ◽  
Thomas D. Brown
2012 ◽  
Vol 9 (1) ◽  
pp. 104266
Author(s):  
Jason K. Otto ◽  
John J. Callaghan ◽  
Thomas D. Brown ◽  
K. Trier ◽  
S. W. Dean

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

Author(s):  
Zhenxian Chen ◽  
Jing Zhang ◽  
Yongchang Gao ◽  
Shibin Chen ◽  
Xuan Zhang ◽  
...  

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.


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 ◽  
...  

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.


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

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

Sign in / Sign up

Export Citation Format

Share Document