scholarly journals Femoral rollback of cruciate-retaining and posterior-stabilized total knee replacements: In vivo fluoroscopic analysis during activities of daily living

2006 ◽  
Vol 24 (12) ◽  
pp. 2222-2229 ◽  
Author(s):  
Silvia Fantozzi ◽  
Fabio Catani ◽  
Andrea Ensini ◽  
Alberto Leardini ◽  
Sandro Giannini
Keyword(s):  
Activities Of Daily Living ◽  
Daily Living ◽  
Posterior Stabilized ◽  
Cruciate Retaining ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Total Knee ◽  
Femoral Rollback

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.

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

Biomechanical Effects of Kneeling With Posterior Cruciate Retaining and Posterior Cruciate Substituting Total Knee Arthroplasty

2009 ◽  
Author(s):  
Jason K. Hofer ◽  
Ryuichi Gejo ◽  
Michelle H. McGarry ◽  
Thay Q. Lee
Keyword(s):  
Total Knee Arthroplasty ◽  
Activities Of Daily Living ◽  
Knee Arthroplasty ◽  
Knee Flexion ◽  
Daily Living ◽  
Middle Eastern ◽  
Large Role ◽  
Asian Countries ◽  
Cruciate Retaining ◽  
Total Knee

Kneeling is an activity that is important in certain occupations and recreational activities. Culturally, kneeling plays a large role in Middle Eastern and Asian countries, where activities of daily living require the ability to kneel and achieve deep knee flexion.

scholarly journals SPECT/CT Assessment of In-Vivo Loading of the Knee Correlates with Polyethylene Deformation in Retrieved Total Knee Arthroplasty

Tomography ◽  
2022 ◽  
Vol 8 (1) ◽  
pp. 180-188
Author(s):  
Harry Hothi ◽  
Arianna Cerquiglini ◽  
Lukas Büel ◽  
Johann Henckel ◽  
Lukas B. Moser ◽  
...  
Keyword(s):  
Distribution Patterns ◽  
Tracer Uptake ◽  
Medial Compartment ◽  
Lateral Side ◽  
Imaging Data ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Total Knee ◽  
In Vivo Loading

Background: SPECT/CT distribution patterns in patients with total knee replacements have previously been correlated with factors such as time of implantation, implant type and alignment. It is unknown, however, if an increased and more extended bone tracer uptake (BTU) in SPECT/CT, representing loading of the joint, correlates with findings from retrieval studies. The aim of this study was to further understand this subject. Materials and Methods: 62 retrieved TKA were included. SPECT/CT was performed prior to revision. Quantitative and qualitative medio-lateral comparisons of BTU intensity and distribution in the tibia were performed. Retrieval analysis was performed with a micro-CT method to assess the thickness differences between medial and lateral sides of polyethylene inserts with symmetrical designs. Results: In the subgroup of TKA with asymmetrical SPECT/CT distribution, there was a significant correlation between retrieval and medical imaging data (p = 0.0355): patients showing a more extended BTU in the medial compartment also had a significantly thinner insert in the medial compartment, and vice versa in the lateral side. Conclusion: This is the first study comparing BTU distribution patterns and retrieval findings. Our results support the hypothesis that SPECT/CT is able to identify bone activity due to implant position and loading.

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

Sagittal curvature of total knee replacements predicts in vivo kinematics

2006 ◽  
Vol 39 ◽  
pp. S129
Author(s):  
L. Dürselen ◽  
O. Kessler ◽  
S. Banks ◽  
H. Mannel ◽  
F. Marin
Keyword(s):  
Total Knee Replacements ◽  
In Vivo Kinematics ◽  
Knee Replacements ◽  
Total Knee

In Vivo Wear Performance of Cobalt-Chromium Versus Oxidized Zirconium Femoral Total Knee Replacements

2016 ◽  
Vol 31 (1) ◽  
pp. 137-141 ◽  
Author(s):  
Trevor C. Gascoyne ◽  
Matthew G. Teeter ◽  
Leah E. Guenther ◽  
Colin D. Burnell ◽  
Eric R. Bohm ◽  
...  
Keyword(s):  
Cobalt Chromium ◽  
Wear Performance ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Oxidized Zirconium ◽  
Total Knee
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