The Influence of Partial Knee Replacement Designs on Tensile Strain at Implant-Bone Interface
Joint Authors
Source
International Journal of Rheumatology
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-17
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Partial knee replacement (PKR) results in fast recovery and good knee mechanics and is ideal to treat medial knee osteoarthritis.
Cementless PKR depends on bone growing into the implant surface for long-term fixation.
Implant loosening may occur due to high tensile strain resulted from large mechanical loads during rehab exercises.
The purpose of this study is to investigate whether external fixations such as superior screw and frontal flange could reduce the tensile strain at the implant-bone interface.
Three medial PKRs were designed.
The first PKR had no external fixations.
A superior screw and a frontal flange were then added to the first PKR to form the second and third PKR designs, respectively.
Finite element analysis was performed to examine the tensile strain at the implant-bone interface during weight-bearing exercises.
The PKR with no external fixations exhibited high tensile strain at the anterior implant-bone interface.
Both the screwed and flanged PKRs effectively reduced the tensile strain at the anterior implant-bone interface.
Furthermore, the flanged PKR resulted in a more uniform reduction of the tensile strain than the screwed PKR.
In conclusion, external fixations are necessary to alleviate tensile strain at the implant-bone interface during knee rehab exercises.
American Psychological Association (APA)
Wang, He& Rolston, Lindsey. 2012. The Influence of Partial Knee Replacement Designs on Tensile Strain at Implant-Bone Interface. International Journal of Rheumatology،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-484686
Modern Language Association (MLA)
Wang, He& Rolston, Lindsey. The Influence of Partial Knee Replacement Designs on Tensile Strain at Implant-Bone Interface. International Journal of Rheumatology No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-484686
American Medical Association (AMA)
Wang, He& Rolston, Lindsey. The Influence of Partial Knee Replacement Designs on Tensile Strain at Implant-Bone Interface. International Journal of Rheumatology. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-484686
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-484686