180° rotatory dislocation of the rotating platform of a posterior-stabilized mobile-bearing knee prosthesis; possible complication after closed reduction of a posterior dislocation – a case report –

The Knee ◽  
2014 ◽  
Vol 21 (1) ◽  
pp. 322-324 ◽  
Author(s):  
Ho Min Lee ◽  
Young Sung Kim ◽  
Jong Pil Kim
Keyword(s):  
Case Report ◽  
Closed Reduction ◽  
Knee Prosthesis ◽  
Mobile Bearing ◽  
Posterior Dislocation ◽  
Posterior Stabilized ◽  
Rotating Platform ◽  
Rotatory Dislocation

Spontaneous dislocation of a mobile-bearing polyethylene insert after posterior-stabilized rotating platform total knee arthroplasty: A case report

The Knee ◽  
2011 ◽  
Vol 18 (6) ◽  
pp. 496-498 ◽  
Author(s):  
Hideo Kobayashi ◽  
Yasushi Akamatsu ◽  
Naoya Taki ◽  
Hirohiko Ota ◽  
Naoto Mitsugi ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Case Report ◽  
Knee Arthroplasty ◽  
Mobile Bearing ◽  
Polyethylene Insert ◽  
Posterior Stabilized ◽  
Rotating Platform ◽  
Total Knee

scholarly journals Comparison of Kinematics in Cruciate Retaining and Posterior Stabilized for Fixed and Rotating Platform Mobile-Bearing Total Knee Arthroplasty with respect to Different Posterior Tibial Slope

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Kyoung-Tak Kang ◽  
Yong-Gon Koh ◽  
Juhyun Son ◽  
Oh-Ryong Kwon ◽  
Jun-Sang Lee ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
External Rotation ◽  
Mobile Bearing ◽  
Tibial Slope ◽  
Posterior Stabilized ◽  
Rotating Platform ◽  
Cruciate Retaining ◽  
Posterior Tibial ◽  
Total Knee

Reconstructed posterior tibial slope (PTS) plays a significant role in kinematics restoration after total knee arthroplasty (TKA). However, the effect of increased and decreased PTS on prosthetic type and design has not yet been investigated. We used a finite element model, validated using in vitro data, to evaluate the effect of PTS on knee kinematics in cruciate-retaining (CR) and posterior-stabilized (PS) fixed TKA and rotating platform mobile-bearing TKA. Anterior-posterior tibial translation and internal-external tibial rotation were investigated for PTS ranging from -3° to 15°, with increments of 1°, for three different designs of TKA. Tibial posterior translation and external rotation increased as the PTS increased in both CR and PS TKAs. In addition, there was no remarkable difference in external rotation between CR and PS TKAs. However, for the mobile-bearing TKA, PTS had less effect on the kinematics. Based on our computational simulation, PTS is the critical factor that influences kinematics in TKA, especially in the CR TKA. Therefore, the surgeon should be careful in choosing the PTS in CR TKAs.

Comparison Between Standard and High-Flexion Posterior-Stabilized Rotating-Platform Mobile-Bearing Total Knee Arthroplasties

2010 ◽  
Vol 92 (16) ◽  
pp. 2634-2642 ◽  
Author(s):  
Won Chul Choi ◽  
Sahnghoon Lee ◽  
Sang Cheol Seong ◽  
Jong Hun Jung ◽  
Myung Chul Lee
Keyword(s):  
Mobile Bearing ◽  
Total Knee Arthroplasties ◽  
Posterior Stabilized ◽  
Rotating Platform ◽  
High Flexion ◽  
Total Knee

scholarly journals Two stage fracture of a polyethylene post in a 9-year-old posterior-stabilized knee prosthesis: a case report

2010 ◽  
Vol 4 (1) ◽  
Author(s):  
Fabio D'Angelo ◽  
Daniele Marcolli ◽  
Paolo Bulgheroni ◽  
Luigi Murena ◽  
Terenzio Congiu ◽  
...  
Keyword(s):  
Case Report ◽  
Knee Prosthesis ◽  
Posterior Stabilized ◽  
Two Stage

The Outcome of Posterior-Stabilized, Rotating Platform Total Knee Arthroplasty at a Minimum Ten-Year Follow-up, a Middle East Institution Experience

2020 ◽  
Author(s):  
Ahmed A. Khalifa ◽  
Mostafa Fayez ◽  
Hesham Elkady ◽  
Ahmed M. Abdelaal ◽  
Maher A. Elassal
Keyword(s):  
Total Knee Arthroplasty ◽  
Survival Rate ◽  
Middle East ◽  
Knee Arthroplasty ◽  
Knee Prosthesis ◽  
Posterior Stabilized ◽  
Rotating Platform ◽  
Total Knee

AbstractPosterior-stabilized, rotating platform knee prosthesis design was aimed to decrease polyethylene wear for the sake of improving implant survivorship. The purpose of the present prospective study was to evaluate the long-term clinical and radiographic results as well as the survival rate after using a rotating platform, posterior-stabilized knee prosthesis at a minimum of 10 years at a Middle East institution. We compared the results with reports in the literature on western populations. From January 2002 to June 2008, 96 patients (106 knees) underwent total knee arthroplasty (TKA) using a cemented rotating platform posterior-stabilized knee prosthesis. At a mean of 11.5 ± 1.3 years, 85 patients (95 TKAs) were available for clinical, radiographic, and implant survival analysis. At the final follow-up, 78.9% of the patients had excellent Knee Society Scoring system score, the average knee flexion was 110 ± 17 degrees, the average anatomical knee coronal alignment was 186 ± 2 degrees and 187 ± 3 degrees for varus and valgus knees, respectively. Five (5.2%) knees were revised of these: two for bearing dislocation, two for aseptic loosening, and one for infection. The Kaplan-Meier survival rate was 94.7% for all revisions and 97.8% when only revision for aseptic loosening considered as the end point. At a long-term follow-up, reasonable clinical and radiographic outcomes had been achieved after using a rotating platform, posterior-stabilized knee prosthesis in our population with acceptable survival rate reaching up to 95%, which is comparable to reports from the western population.

In Vivo Kinematic Analysis of a High-Flexion, Posterior-Stabilized, Mobile-Bearing Knee Prosthesis in Deep Knee Bending Motion

2009 ◽  
Vol 24 (6) ◽  
pp. 972-978 ◽  
Author(s):  
Masashi Tamaki ◽  
Tetsuya Tomita ◽  
Tetsu Watanabe ◽  
Takaharu Yamazaki ◽  
Hideki Yoshikawa ◽  
...  
Keyword(s):  
Kinematic Analysis ◽  
Knee Prosthesis ◽  
Mobile Bearing ◽  
Posterior Stabilized ◽  
High Flexion

Dislocation of posterior-stabilized mobile-bearing knee prosthesis

The Knee ◽  
2006 ◽  
Vol 13 (6) ◽  
pp. 478-482 ◽  
Author(s):  
Masahiro Hasegawa ◽  
Akihiro Sudo ◽  
Aki Fukuda ◽  
Atsumasa Uchida
Keyword(s):  
Knee Prosthesis ◽  
Mobile Bearing ◽  
Posterior Stabilized
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