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
2009 ◽  
Vol 22 (5) ◽  
pp. 368-374 ◽  
Author(s):  
Daniel M. Stormont ◽  
Kim J. Chillag ◽  
James W. Scott ◽  
Mark A. Klaassen ◽  
William S. Pietrzak

1994 ◽  
Vol 60 (580) ◽  
pp. 4295-4302
Author(s):  
Yoshinori Sawae ◽  
Teruo Murakami ◽  
Hidehiko Higaki ◽  
Sigeaki Moriyama

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Satoshi Hamai ◽  
Taka-aki Moro-oka ◽  
Nicholas J. Dunbar ◽  
Hiromasa Miura ◽  
Yukihide Iwamoto ◽  
...  

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.


The Knee ◽  
2010 ◽  
Vol 17 (4) ◽  
pp. 279-282 ◽  
Author(s):  
Mark Lewis ◽  
Andoni P. Toms ◽  
Karen Reid ◽  
William Bugg

2021 ◽  
Vol 87 (3) ◽  
pp. 449-451
Author(s):  
Lucas Petitqueux ◽  
Karen Verhulst ◽  
Jan Dauwe ◽  
Dirk Dauwe

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).


2002 ◽  
Vol 17 (6) ◽  
pp. 713-717 ◽  
Author(s):  
P. Chapman-Sheath ◽  
S. Cain ◽  
W.J.M. Bruce ◽  
W.K. Chung ◽  
W.R. Walsh

2019 ◽  
Vol 43 (3) ◽  
pp. 203-207
Author(s):  
Emanuela Castiello ◽  
Saverio Affatato

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.


Sign in / Sign up

Export Citation Format

Share Document