scholarly journals Changes in microgaps, micromotion, and trabecular strain from interlocked cement-trabecular bone interfaces in total knee replacements with in vivo service

2015 ◽  
Vol 34 (6) ◽  
pp. 1019-1025 ◽  
Author(s):  
Mark A. Miller ◽  
Jacklyn R. Goodheart ◽  
Benjamin Khechen ◽  
Dennis Janssen ◽  
Kenneth A. Mann
Keyword(s):  
Trabecular Bone ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Total Knee

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.

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

scholarly journals Peri-implant bone strains and micro-motion following in vivo service: A postmortem retrieval study of 22 tibial components from total knee replacements

2013 ◽  
Vol 32 (3) ◽  
pp. 355-361 ◽  
Author(s):  
Kenneth A. Mann ◽  
Mark A. Miller ◽  
Jacklyn R. Goodheart ◽  
Timothy H. Izant ◽  
Richard J. Cleary
Keyword(s):  
Total Knee Replacements ◽  
Retrieval Study ◽  
Knee Replacements ◽  
Bone Strains ◽  
Total Knee ◽  
Micro Motion

Musculoskeletal Model During Treadmill Gait

2013 ◽  
Author(s):  
Mohammad Kia ◽  
Trent M. Guess ◽  
Antonis P. Stylianou
Keyword(s):  
Computational Models ◽  
Clinical Applications ◽  
Implant Design ◽  
Detailed Knowledge ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Total Knee ◽  
Clinical Tools ◽  
Joint Loads

Detailed knowledge of joint kinematics and loading is essential for improving the design and surgical outcomes of total knee replacements as well as tissue engineering applications. Dynamic loading is a contributing factor in the development of joint osteoarthritis and in total knee replacement wear. Dynamic computational models in which muscle, ligament, and joint loads are predicted concurrently would be ideal clinical tools for surgery planning and for implant design. An important obstacle in clinical applications of computational models is validation of the estimated in-vivo loads.

In Vivo Fluoroscopic Analysis Of Fixed-Bearing Total Knee Replacements

2003 ◽  
Vol 410 ◽  
pp. 114-130 ◽  
Author(s):  
Douglas A. Dennis ◽  
Richard D. Komistek ◽  
Mohamed R. Mahfouz
Keyword(s):  
Fixed Bearing ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Total Knee

Sagittal curvature of total knee replacements predicts in vivo kinematics

2007 ◽  
Vol 22 (1) ◽  
pp. 52-58 ◽  
Author(s):  
Oliver Kessler ◽  
Lutz Dürselen ◽  
Scott Banks ◽  
Henrich Mannel ◽  
Frédéric Marin
Keyword(s):  
Total Knee Replacements ◽  
In Vivo Kinematics ◽  
Knee Replacements ◽  
Total Knee
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