Accurate internal–external rotation measurement in total knee prostheses: A magnetic solution

2012 ◽  
Vol 45 (11) ◽  
pp. 2023-2027 ◽  
Author(s):  
Arash Arami ◽  
Jenifer Miehlbradt ◽  
Kamiar Aminian
Keyword(s):  
External Rotation ◽  
Knee Prostheses ◽  
Rotation Measurement ◽  
Total Knee

The Relationship between Pre- and Postoperative Range of Motion Utilizing Three Cruciate-Retaining Total Knee Prostheses

2009 ◽  
Vol 22 (5) ◽  
pp. 368-374 ◽  
Author(s):  
Daniel M. Stormont ◽  
Kim J. Chillag ◽  
James W. Scott ◽  
Mark A. Klaassen ◽  
William S. Pietrzak
Keyword(s):  
Range Of Motion ◽  
Knee Prostheses ◽  
Cruciate Retaining ◽  
Total Knee ◽  
The Relationship

scholarly journals Lubrication Property of Total Knee Prostheses with PVA Hydrogel Layer as Artificial Cartilage.

1994 ◽  
Vol 60 (580) ◽  
pp. 4295-4302
Author(s):  
Yoshinori Sawae ◽  
Teruo Murakami ◽  
Hidehiko Higaki ◽  
Sigeaki Moriyama
Keyword(s):  
Knee Prostheses ◽  
Artificial Cartilage ◽  
Total Knee ◽  
Pva Hydrogel

scholarly journals In VivoHealthy Knee Kinematics during Dynamic Full Flexion

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Satoshi Hamai ◽  
Taka-aki Moro-oka ◽  
Nicholas J. Dunbar ◽  
Hiromasa Miura ◽  
Yukihide Iwamoto ◽  
...  
Keyword(s):  
Knee Flexion ◽  
Knee Kinematics ◽  
The Other ◽  
Medial Compartment ◽  
Knee Flexion Angle ◽  
Knee Prostheses ◽  
Healthy Knee ◽  
Total Knee ◽  
Full Flexion ◽  
2D Model

Healthy knee kinematics during dynamic full flexion were evaluated using 3D-to-2D model registration techniques. Continuous knee motions were recorded during full flexion in a lunge from 85° to 150°. Medial and lateral tibiofemoral contacts and femoral internal-external and varus-valgus rotations were analyzed as a function of knee flexion angle. The medial tibiofemoral contact translated anteroposteriorly, but remained on the center of the medial compartment. On the other hand, the lateral tibiofemoral contact translated posteriorly to the edge of the tibial surface at 150° flexion. The femur exhibited external and valgus rotation relative to the tibia over the entire activity and reached 30° external and 5° valgus rotations at 150° flexion. Kinematics’ data during dynamic full flexion may provide important insight as to the designing of high-flexion total knee prostheses.

CT metal artefact reduction of total knee prostheses using angled gantry multiplanar reformation

The Knee ◽  
2010 ◽  
Vol 17 (4) ◽  
pp. 279-282 ◽  
Author(s):  
Mark Lewis ◽  
Andoni P. Toms ◽  
Karen Reid ◽  
William Bugg
Keyword(s):  
Knee Prostheses ◽  
Multiplanar Reformation ◽  
Metal Artefact Reduction ◽  
Metal Artefact ◽  
Total Knee ◽  
Artefact Reduction

scholarly journals A case of an atraumatic implant failure after primary rotating-hinge total knee arthroplasty

2021 ◽  
Vol 87 (3) ◽  
pp. 449-451
Author(s):  
Lucas Petitqueux ◽  
Karen Verhulst ◽  
Jan Dauwe ◽  
Dirk Dauwe
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Medical Literature ◽  
Femoral Stem ◽  
Revision Total Knee Arthroplasty ◽  
Knee Prostheses ◽  
Rotating Hinge ◽  
Total Knee ◽  
Rotating Hinge Knee ◽  
Implant Breakage

Rotating-hinge knee implants are fully constrained knee prostheses commonly used for revision total knee arthroplasty. Nevertheless, rotating-hinge devices have been increasingly utilized in primary setting. Complications are inevitable in orthopedic surgery, however, implant breakage after RHK arthroplasty has been rarely described in medical literature. We present a rare case of 70-year-old Caucasian, male patient who suffered an atraumatic femoral stem breakage in a primary NexGen ® Rotating Hinge Knee (Zimmer-Biomet ® , Warsaw, IN, USA).

Surface roughness of the proximal and distal bearing surface of mobile bearing total knee prostheses

2002 ◽  
Vol 17 (6) ◽  
pp. 713-717 ◽  
Author(s):  
P. Chapman-Sheath ◽  
S. Cain ◽  
W.J.M. Bruce ◽  
W.K. Chung ◽  
W.R. Walsh
Keyword(s):  
Surface Roughness ◽  
Mobile Bearing ◽  
Knee Prostheses ◽  
Bearing Surface ◽  
Total Knee

Progression of osteoarthritis and reoperation in unicompartmental knee arthroplasty: A comparison of national joint registries

2019 ◽  
Vol 43 (3) ◽  
pp. 203-207
Author(s):  
Emanuela Castiello ◽  
Saverio Affatato
Keyword(s):  
Knee Arthroplasty ◽  
Unicompartmental Knee Arthroplasty ◽  
Revision Rate ◽  
Current Data ◽  
Knee Prostheses ◽  
Unicompartmental Knee ◽  
International Joint ◽  
Osteoarthritis Progression ◽  
History Of ◽  
Total Knee

Unicompartmental knee arthroplasty remains a challenge for orthopaedic surgeons because of its higher revision rate compare with the total knee arthroplasty. The hypothesis of this work is that the progression of osteoarthritis in unicompartmental knee prostheses is the natural history of the degenerative disease and a reason for reoperation. Most international joint registries consider this fact as a failure of the implant and a cause of revision. Annual joint registries were searched for progression of osteoarthritis in unicompartmental knee arthroplasty and reasons for their revisions. Current data from registries for unicompartmental knee indicate that the revision rate of such prostheses is overestimated. Considering osteoarthritis progression as the development of the existing disease and not as a failure of the implant, revision rate will be reduced. Registries, reports, and studies are needed to evaluate the progression of osteoarthritis as a cause of reoperation instead of a reason for revision, reducing unicompartmental revision rate and encouraging surgeons to implant more of them.

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