Comparison between cruciate retaining and posterior stabilized total knee replacements: Gait and fluoro analyses in bilateral cases

2012 ◽  
Vol 35 ◽  
pp. S17 ◽  
Author(s):  
L. Berti ◽  
F. Cenni ◽  
C. Belvedere ◽  
A. Leardini ◽  
F. Bove ◽  
...  
Keyword(s):  
Posterior Stabilized ◽  
Cruciate Retaining ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Total Knee

The influence of tibial tray design on the wear of fixed-bearing total knee replacements

2008 ◽  
Vol 222 (8) ◽  
pp. 1289-1293 ◽  
Author(s):  
A Galvin ◽  
L M Jennings ◽  
H M McEwen ◽  
J Fisher
Keyword(s):  
Fixed Bearing ◽  
Posterior Stabilized ◽  
Cruciate Retaining ◽  
Tibial Tray ◽  
Wear Rates ◽  
Total Knee Replacements ◽  
Locking Mechanism ◽  
Significant Difference ◽  
Knee Replacements ◽  
Total Knee

Debris-induced osteolysis due to surface wear is a potential long-term problem in total knee replacements (TKRs). Wear between the tibial tray and ultra-high molecular weight polyethylene insert is thought to contribute to the wear. This study investigated the influence of tibial tray design on the wear of fixed-bearing TKRs. Specifically, this study investigated the influence of the material's surface finish and design characteristics of the locking mechanism of the tibial tray on the wear in fixed-bearing knees for both cruciate-retaining (CR) and posterior-stabilized designs. A new fixed-bearing tibial tray design using Co—Cr and with an improved locking mechanism significantly reduced polyethylene wear from 22.8 ± 6.0 mm3 per 106 cycles to 15.9 ± 2.9 mm3 per 106 cycles compared with a previous titanium alloy tray with a CR design. The wear rates were similar to those of a fixed-bearing insert clamped into a tibial tray, suggesting that the decrease in wear was due to a reduction in backside wear. There was no significant difference between the wear rates of a cruciate-retaining design and a posterior-stabilized design under the two kinematic conditions tested.

WHY POSTERIOR CRUCIATE-RETAINING AND SUBSTITUTING TOTAL KNEE REPLACEMENTS HAVE SIMILAR RANGES OF MOTION

2006 ◽  
Vol 88 ◽  
pp. 182-188
Author(s):  
WAYNE M. GOLDSTEIN ◽  
J. RAAB ◽  
THOMAS F. GLEASON ◽  
JILL JASPERSON BRANSON ◽  
KIMBERLY BERLAND
Keyword(s):  
Cruciate Retaining ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Total Knee

scholarly journals Non-Traumatic Anterior Dislocation of a Total Knee Replacement Associated with Neurovascular Injury

2009 ◽  
Vol 91 (8) ◽  
pp. 658-659 ◽  
Author(s):  
Joseph Aderinto ◽  
Allan E Gross ◽  
Bryan Rittenhouse
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Anterior Dislocation ◽  
Cruciate Retaining ◽  
Total Knee Replacements ◽  
Neurovascular Injury ◽  
Knee Replacements ◽  
Total Knee ◽  
Posterior Direction

Prosthetic total knee replacements rarely dislocate. When dislocation does occur, it is usually in a posterior direction in association with a posterior stabilised, cruciate-sacrificing prosthesis. Neurovascular injury is unusual. In this report, we describe a case of anterior dislocation of a cruciate-retaining total knee replacement in a 67-year-old woman. The dislocation occurred in the absence of overt trauma and resulted in severe neurovascular injury.

Medium- to Long-Term Results of the Nexgen Legacy Posterior Stabilized Fixed-Bearing Knee Replacement

2018 ◽  
Vol 32 (06) ◽  
pp. 554-559
Author(s):  
Oommen Mathew Arikupurathu ◽  
Linda Johnston ◽  
Alasdair MacInnes ◽  
Graeme Nicol ◽  
Manhal Nassif
Keyword(s):  
Long Term Results ◽  
Posterior Stabilized ◽  
Range Of Movement ◽  
Total Knee Replacements ◽  
Design Changes ◽  
Knee Replacements ◽  
Total Knee ◽  
The Mean

AbstractThe NexGen legacy posterior stabilized (LPS) prosthesis was introduced in 1997 after many design changes to its predecessor, the Insall–Burstein II prosthesis. However, there have been no reported long-term studies on the performance of this implant. Prospectively, collected data from a local database comprising primary total knee replacements (TKRs) with LPS between 1997 and 2002 was analyzed. All implants were fixed with cement. Patients were followed up at 1, 3, 5, 7, and 10 years, with patient satisfaction, range of movement, and Knee Society score (KSS) assessed. A total of 621 primary TKRs were analyzed with an average follow-up of 11.25 years (9.15–14.55). The mean age was 69.53 years. The mean KSS was 88.97 and mean flexion increased from 88.3 to 103.5 degrees at 10 years. Kaplan–Meier's analysis revealed a survivorship of 96.5% with revision for any reason as the end point and 98.9% if aseptic loosening was the reason for revision at 14 years. This study revealed excellent mid- to long-term results with the NexGen LPS prosthesis.

Grafted Vitamin-E UHMWPE may increase the durability of posterior stabilized and constrained condylar total knee replacements

2016 ◽  
Vol 105 (7) ◽  
pp. 1789-1798 ◽  
Author(s):  
James D. Wernle ◽  
Kimberly D. Mimnaugh ◽  
Alicia S. Rufner ◽  
Oludele O. Popoola ◽  
Jean-Noel Argenson ◽  
...  
Keyword(s):  
Vitamin E ◽  
Posterior Stabilized ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Total Knee
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