Computed tomography confirmation of component rotation in nanosensor-balanced total knee arthroplasty
Balanced gaps and proper rotation are felt to be essential for optimum range of motion, stability, and patellar tracking in total knee arthroplasty. The purpose of this study is to assess, using computed tomography, the rotation of femoral and tibial components in fresh-frozen human cadaver knees th...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-03-01
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| Series: | Arthroplasty Today |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352344118300773 |
| _version_ | 1818510836718632960 |
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| author | Jacob R. Riis, MD James P. Reynolds, MD Shane R. Hess, DO Peter J. Haar, MD John R. Owen, MS Jennifer S. Wayne, PhD Gregory J. Golladay, MD |
| author_facet | Jacob R. Riis, MD James P. Reynolds, MD Shane R. Hess, DO Peter J. Haar, MD John R. Owen, MS Jennifer S. Wayne, PhD Gregory J. Golladay, MD |
| author_sort | Jacob R. Riis, MD |
| collection | DOAJ |
| description | Balanced gaps and proper rotation are felt to be essential for optimum range of motion, stability, and patellar tracking in total knee arthroplasty. The purpose of this study is to assess, using computed tomography, the rotation of femoral and tibial components in fresh-frozen human cadaver knees that have been balanced using nanosensor trials while also observing how this rotation affects measured compartment loads and requirement for ligament balancing adjustment. We found that minor degrees of rotational malalignment of the femur and tibia were common using standard instrumentation and measured resection technique. Quantitative balance and rotational congruence are aided by nanosensor guidance, and femoral malrotation of up to 8° does not appear to affect compartment loads significantly as long as rotational congruity is present. Keywords: Clinical outcomes research, Knee arthroplasty, Surgical navigation outcomes and robotics |
| first_indexed | 2024-12-10T23:25:32Z |
| format | Article |
| id | doaj.art-d41814a9928649eca245d5aa51963ac2 |
| institution | Directory Open Access Journal |
| issn | 2352-3441 |
| language | English |
| last_indexed | 2024-12-10T23:25:32Z |
| publishDate | 2019-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arthroplasty Today |
| spelling | doaj.art-d41814a9928649eca245d5aa51963ac22022-12-22T01:29:36ZengElsevierArthroplasty Today2352-34412019-03-01516467Computed tomography confirmation of component rotation in nanosensor-balanced total knee arthroplastyJacob R. Riis, MD0James P. Reynolds, MD1Shane R. Hess, DO2Peter J. Haar, MD3John R. Owen, MS4Jennifer S. Wayne, PhD5Gregory J. Golladay, MD6Virginia Commonwealth University Health System, Orthopaedics, Richmond, VA, USAUC Davis, Sacramento, CA, USACORE Institute, Phoenix, AZ, USAVirginia Commonwealth University Health System, Radiology, Richmond, VA, USAVirginia Commonwealth University, Biomechanical Engineering, Richmond, VA, USAVirginia Commonwealth University, Biomedical Engineering, Richmond, VA, USAVirginia Commonwealth University Health System, Orthopaedics, Richmond, VA, USA; Corresponding author. P.O. Box 980153, Virginia Commowealth University, Richmond, VA 23298-0153, USA. Tel.: +1 804 828 5674.Balanced gaps and proper rotation are felt to be essential for optimum range of motion, stability, and patellar tracking in total knee arthroplasty. The purpose of this study is to assess, using computed tomography, the rotation of femoral and tibial components in fresh-frozen human cadaver knees that have been balanced using nanosensor trials while also observing how this rotation affects measured compartment loads and requirement for ligament balancing adjustment. We found that minor degrees of rotational malalignment of the femur and tibia were common using standard instrumentation and measured resection technique. Quantitative balance and rotational congruence are aided by nanosensor guidance, and femoral malrotation of up to 8° does not appear to affect compartment loads significantly as long as rotational congruity is present. Keywords: Clinical outcomes research, Knee arthroplasty, Surgical navigation outcomes and roboticshttp://www.sciencedirect.com/science/article/pii/S2352344118300773 |
| spellingShingle | Jacob R. Riis, MD James P. Reynolds, MD Shane R. Hess, DO Peter J. Haar, MD John R. Owen, MS Jennifer S. Wayne, PhD Gregory J. Golladay, MD Computed tomography confirmation of component rotation in nanosensor-balanced total knee arthroplasty Arthroplasty Today |
| title | Computed tomography confirmation of component rotation in nanosensor-balanced total knee arthroplasty |
| title_full | Computed tomography confirmation of component rotation in nanosensor-balanced total knee arthroplasty |
| title_fullStr | Computed tomography confirmation of component rotation in nanosensor-balanced total knee arthroplasty |
| title_full_unstemmed | Computed tomography confirmation of component rotation in nanosensor-balanced total knee arthroplasty |
| title_short | Computed tomography confirmation of component rotation in nanosensor-balanced total knee arthroplasty |
| title_sort | computed tomography confirmation of component rotation in nanosensor balanced total knee arthroplasty |
| url | http://www.sciencedirect.com/science/article/pii/S2352344118300773 |
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