Effect on patellar kinematics of the different patellar component designs in total knee arthroplasty: intraoperative measurement of dome type versus anatomic type

2019 ◽  
Vol 30 (3) ◽  
pp. 419-424 ◽  
Author(s):  
Takeshi Mochizuki ◽  
Koichiro Yano ◽  
Katsunori Ikari ◽  
Ryo Hiroshima ◽  
Ken Okazaki
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Type Versus ◽  
Patellar Kinematics ◽  
Patellar Component ◽  
Total Knee

FATE OF THE UNREVISED ALL-POLYETHYLENE PATELLAR COMPONENT IN REVISION TOTAL KNEE ARTHROPLASTY

2003 ◽  
Vol 85 (1) ◽  
pp. 56-59 ◽  
Author(s):  
JESS H. LONNER ◽  
MICHAEL A. MONT ◽  
PETER F. SHARKEY ◽  
JOHN M. SILISKI ◽  
AMAR D. RAJADHYAKSHA ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Revision Total Knee Arthroplasty ◽  
Patellar Component ◽  
Total Knee

Evaluation of a 3D-printed total knee arthroplasty using radiostereometric analysis

2019 ◽  
Vol 101-B (7_Supple_C) ◽  
pp. 40-47 ◽  
Author(s):  
S. Sporer ◽  
L. MacLean ◽  
A. Burger ◽  
M. Moric
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Radiostereometric Analysis ◽  
Biological Fixation ◽  
Implant Surface ◽  
Patellar Component ◽  
Patient Reported ◽  
3D Printed ◽  
Total Knee ◽  
Highly Porous

AimsOur intention was to investigate if the highly porous biological fixation surfaces of a new 3D-printed total knee arthroplasty (TKA) achieved adequate fixation of the tibial and patellar components to the underlying bone.Patients and MethodsA total of 29 patients undergoing primary TKA consented to participate in this prospective cohort study. All patients received a highly porous tibial baseplate and metal-backed patella. Patient-reported outcomes measures were recorded and implant migration was assessed using radiostereometric analysis.ResultsPatient function significantly improved by three months postoperatively (p < 0.001). Mean difference in maximum total point motion between 12 and 24 months was 0.021 mm (-0.265 to 0.572) for the tibial implant and 0.089 mm (-0.337 to 0.758) for the patellar implant. The rate of tibial and patellar migration was largest over the first six postoperative weeks, with no changes in mean tibia migration occurring after six months, and no changes in mean patellar migration occurring after six weeks. One patellar component showed a rapid rate of migration between 12 and 24 months.ConclusionBiological fixation appears to occur reliably on the highly porous implant surface of the tibial baseplate and metal-backed patellar component. Rapid migration after 12 months was measured for one patellar component. Further investigation is required to assess the long-term stability of the 3D-printed components and to determine if the high-migrating components achieve fixation. Cite this article: Bone Joint J 2019;101-B(7 Supple C):40–47

Patellar component medialization in total knee arthroplasty

1997 ◽  
Vol 12 (2) ◽  
pp. 155-160 ◽  
Author(s):  
Aaron A. Hofmann ◽  
Thomas K. Tkach ◽  
Christopher J. Evanich ◽  
Marcelo P. Camargo ◽  
Yongde Zhang
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Patellar Component ◽  
Total Knee

Metal-backed patellar component failure in total knee arthroplasty presenting as a giant calf mass

2003 ◽  
Vol 18 (2) ◽  
pp. 227-230 ◽  
Author(s):  
Fang-Yeng Chang ◽  
Kuo-Fung Tseng ◽  
Wei-Ming Chen ◽  
Ching-Kuei Huang ◽  
Tain-Hsiung Chen ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Component Failure ◽  
Patellar Component ◽  
Total Knee

Results of total knee arthroplasty with a metal-backed patellar component

1996 ◽  
Vol 11 (8) ◽  
pp. 923-930 ◽  
Author(s):  
C.P. Rader ◽  
J. Löhr ◽  
R. Wittmann ◽  
J. Eulert
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Patellar Component ◽  
Total Knee

scholarly journals Revision of Total Knee Arthroplasty with Patellar Component Failure.

1995 ◽  
Vol 44 (3) ◽  
pp. 932-935
Author(s):  
Tetsuya Fukumoto ◽  
Kazutoshi Nomura ◽  
Mako Hirano ◽  
Noburo Hashimoto ◽  
Yasuhiro Shimizu
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Component Failure ◽  
Patellar Component ◽  
Total Knee

Do surgical patellar interventions restore patellar kinematics in fixed-bearing, cruciate-retaining total knee arthroplasty?

2014 ◽  
Vol 29 (11) ◽  
pp. 2197-2201 ◽  
Author(s):  
Armin Keshmiri ◽  
Günther Maderbacher ◽  
Clemens Baier ◽  
Werner Müller ◽  
Joachim Grifka ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Fixed Bearing ◽  
Patellar Kinematics ◽  
Cruciate Retaining ◽  
Total Knee

Evaluation and Analysis of the Onlay Patellar Component in Total Knee Arthroplasty

2010 ◽  
Vol 97-101 ◽  
pp. 3773-3776 ◽  
Author(s):  
Chien Wei Liu ◽  
Chia Chi Lo ◽  
Ching Sung Wang ◽  
Chen Tung Yu
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Three Dimensional ◽  
Element Model ◽  
Clinical Results ◽  
Original Design ◽  
Design Modification ◽  
Patellar Component ◽  
Significant Difference ◽  
Total Knee

Complications in total knee arthroplasty (TKA), which may include the inaccuracy of the implantation and the poor component design, can cause major failures in the TKA. Therefore, the present investigation studies the onlay knee implants commonly used clinically to find the major causes of the damage to artificial patella by the computer aided analysis of the three-dimensional finite element model of the artificial patello-femoral joint built through reverse engineering. Results showed that although a significant difference is found in the condition and the state of the stress distribution generated as the patello-femoral joint changes with the flexion of the knees, this variation is still within the tolerable range; but the patellar lateral tilt is something that caught our attention. Furthermore, through the comparison between the study and the clinical results, this investigation concludes that the bone cement on the implant interface is the major cause for the breaking of the pegs, and is not related to the original design of the patella. This study also discovers that slight design modification on the parts of commonly used artificial joints may effectively reduce surgical failure rate; therefore, a more robust design configuration for patellar pegs is proposed.

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