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Difference between Mechanical Alignment in Navigation and Scanogram during Total Knee Arthroplasty
Joint Authors
Bhimani, Rohan
Bhimani, Fardeen
Singh, Preeti
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-04-01
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Introduction.
Malpositioning of the implant results in polyethylene wear and loosing of implant after total knee arthroplasty.
Scanogram is often used for measurement of limb alignment.
Computer navigation provides real time measurements and thus, the aim is to see any association pre- and postoperatively between coronal alignments measured on scanogram to computer navigation during total knee arthroplasty.
Material and Methods.
We prospectively gathered data of 200 patients with advanced degenerative symptomatic arthritis, who were consecutively selected for primary total knee arthroplasty with computer navigation.
Every patient’s pre- and postoperative scanogram were compared to the intraoperative computer navigation findings.
Results.
The results show that the preoperative mean mechanical axis on navigation was 10.65° (SD ± 6.95) and on scanogram it was 10.38° (SD ± 6.89).
On the other hand, the mean postoperative mechanical axis on navigation was 0.69° (SD ± 0.87) and on scanogram it was 2.73° (SD ± 2.10).
Preoperatively, there was no significant difference (p value = 0.46) between the two.
However, the postoperative outcomes suggest that there was a noteworthy difference, with no correlation between the mean Hip-Knee Ankle Axis (HKA) and intraoperative mechanical axis (p value <0.0001).
Conclusion.
Postoperative mechanical alignment values after total knee arthroplasty are lower on navigation than measured on standing full length hip to ankle scanogram.
American Psychological Association (APA)
Bhimani, Rohan& Bhimani, Fardeen& Singh, Preeti. 2019. Difference between Mechanical Alignment in Navigation and Scanogram during Total Knee Arthroplasty. Advances in Orthopedics،Vol. 2019, no. 2019, pp.1-5.
https://search.emarefa.net/detail/BIM-1121583
Modern Language Association (MLA)
Bhimani, Rohan…[et al.]. Difference between Mechanical Alignment in Navigation and Scanogram during Total Knee Arthroplasty. Advances in Orthopedics No. 2019 (2019), pp.1-5.
https://search.emarefa.net/detail/BIM-1121583
American Medical Association (AMA)
Bhimani, Rohan& Bhimani, Fardeen& Singh, Preeti. Difference between Mechanical Alignment in Navigation and Scanogram during Total Knee Arthroplasty. Advances in Orthopedics. 2019. Vol. 2019, no. 2019, pp.1-5.
https://search.emarefa.net/detail/BIM-1121583
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121583