Accuracy of Implant Placement Utilizing Customized Patient Instrumentation in Total Knee Arthroplasty
Joint Authors
Patil, Shantanu
Mizu-uchi, Hideki
Bugbee, William D.
D'Lima, Darryl
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-16
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Customized patient instrumentation (CPI) combines preoperative planning with customized cutting jigs to position and align implants during total knee arthroplasty (TKA).
We compared postoperative implant alignment of patients undergoing surgery with CPI to traditional TKA instrumentation for accuracy of implant placement.
Twenty-five consecutive TKAs using CPI were analyzed.
Preoperative CT scans of the lower extremities were segmented using a computer program.
Limb alignment and mechanical axis were computed.
Virtual implantation of computer-aided design models was done.
Postoperative coronal and sagittal view radiographs were obtained.
Using 3D image-matching software, relative positions of femoral and tibial implants were determined.
Twenty-five TKAs implanted using traditional instrumentation were also analyzed.
For CPI, difference in alignment from the preoperative plan was calculated.
In the CPI group, the mean absolute difference between the planned and actual femoral placements was 0.67° in the coronal plane and 1.2° in the sagittal plane.
For tibial alignment, the mean absolute difference was 0.9° in the coronal plane and 1.3° in the sagittal plane.
For traditional instrumentation, difference from ideal placement for the femur was 1.5° in the coronal plane and 2.3° in the sagittal plane.
For the tibia, the difference was 1.8° in the coronal plane.
CPI achieved accurate implant positioning and was superior to traditional TKA instrumentation.
American Psychological Association (APA)
Bugbee, William D.& Mizu-uchi, Hideki& Patil, Shantanu& D'Lima, Darryl. 2013. Accuracy of Implant Placement Utilizing Customized Patient Instrumentation in Total Knee Arthroplasty. Advances in Orthopedics،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-505804
Modern Language Association (MLA)
Bugbee, William D.…[et al.]. Accuracy of Implant Placement Utilizing Customized Patient Instrumentation in Total Knee Arthroplasty. Advances in Orthopedics No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-505804
American Medical Association (AMA)
Bugbee, William D.& Mizu-uchi, Hideki& Patil, Shantanu& D'Lima, Darryl. Accuracy of Implant Placement Utilizing Customized Patient Instrumentation in Total Knee Arthroplasty. Advances in Orthopedics. 2013. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-505804
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-505804