Functional Alignment Philosophy in Total Knee Arthroplasty—Rationale and Technique for the Valgus Morphotype Using an Image Based Robotic Platform and Individualized Planning
Functional alignment (FA) is a novel philosophy to deliver a total knee arthroplasty (TKA) that respects individual bony and soft tissue phenotypes within defined limitations. The purpose of this paper is to describe the rationale and technique of FA in the valgus morphotype with the use of an image...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Journal of Personalized Medicine |
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| Online Access: | https://www.mdpi.com/2075-4426/13/2/212 |
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| author | Jobe Shatrov Constant Foissey Moussa Kafelov Cécile Batailler Stanislas Gunst Elvire Servien Sébastien Lustig |
| author_facet | Jobe Shatrov Constant Foissey Moussa Kafelov Cécile Batailler Stanislas Gunst Elvire Servien Sébastien Lustig |
| author_sort | Jobe Shatrov |
| collection | DOAJ |
| description | Functional alignment (FA) is a novel philosophy to deliver a total knee arthroplasty (TKA) that respects individual bony and soft tissue phenotypes within defined limitations. The purpose of this paper is to describe the rationale and technique of FA in the valgus morphotype with the use of an image-based robotic-platform. For the valgus phenotype the principles are personalized pre-operative planning, reconstitution of native coronal alignment without residual varus or valgus of more than 3°, restoration of dynamic sagittal alignment within 5° of neutral, implant sizing to match anatomy, and achievement of defined soft tissue laxity in extension and flexion through implant manipulation within the defined boundaries. An individualized plan is created from pre-operative imaging. Next, a reproducible and quantifiable assessment of soft tissue laxity is performed in extension and flexion. Implant positioning is then manipulated in all three planes if necessary to achieve target gap measurements and a final limb position within a defined coronal and sagittal range. FA is a novel TKA technique that aims to restore constitutional bony alignment and balance the laxity of the soft tissues by placing and sizing implants in a manner that respects variations in individual anatomy and soft tissues within defined limits. |
| first_indexed | 2024-03-11T08:34:54Z |
| format | Article |
| id | doaj.art-c201f6fc04cb4c1ebc1b5709e9e256a6 |
| institution | Directory Open Access Journal |
| issn | 2075-4426 |
| language | English |
| last_indexed | 2024-03-11T08:34:54Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Personalized Medicine |
| spelling | doaj.art-c201f6fc04cb4c1ebc1b5709e9e256a62023-11-16T21:32:17ZengMDPI AGJournal of Personalized Medicine2075-44262023-01-0113221210.3390/jpm13020212Functional Alignment Philosophy in Total Knee Arthroplasty—Rationale and Technique for the Valgus Morphotype Using an Image Based Robotic Platform and Individualized PlanningJobe Shatrov0Constant Foissey1Moussa Kafelov2Cécile Batailler3Stanislas Gunst4Elvire Servien5Sébastien Lustig6Department of Orthopaedics, Croix Rousse Hospital, University of Lyon 1, 69004 Lyon, FranceDepartment of Orthopaedics, Croix Rousse Hospital, University of Lyon 1, 69004 Lyon, FranceDepartment of Orthopaedics, Croix Rousse Hospital, University of Lyon 1, 69004 Lyon, FranceDepartment of Orthopaedics, Croix Rousse Hospital, University of Lyon 1, 69004 Lyon, FranceDepartment of Orthopaedics, Croix Rousse Hospital, University of Lyon 1, 69004 Lyon, FranceDepartment of Orthopaedics, Croix Rousse Hospital, University of Lyon 1, 69004 Lyon, FranceDepartment of Orthopaedics, Croix Rousse Hospital, University of Lyon 1, 69004 Lyon, FranceFunctional alignment (FA) is a novel philosophy to deliver a total knee arthroplasty (TKA) that respects individual bony and soft tissue phenotypes within defined limitations. The purpose of this paper is to describe the rationale and technique of FA in the valgus morphotype with the use of an image-based robotic-platform. For the valgus phenotype the principles are personalized pre-operative planning, reconstitution of native coronal alignment without residual varus or valgus of more than 3°, restoration of dynamic sagittal alignment within 5° of neutral, implant sizing to match anatomy, and achievement of defined soft tissue laxity in extension and flexion through implant manipulation within the defined boundaries. An individualized plan is created from pre-operative imaging. Next, a reproducible and quantifiable assessment of soft tissue laxity is performed in extension and flexion. Implant positioning is then manipulated in all three planes if necessary to achieve target gap measurements and a final limb position within a defined coronal and sagittal range. FA is a novel TKA technique that aims to restore constitutional bony alignment and balance the laxity of the soft tissues by placing and sizing implants in a manner that respects variations in individual anatomy and soft tissues within defined limits.https://www.mdpi.com/2075-4426/13/2/212alignment philosophyknee alignmentfunctional alignmenttotal knee arthroplastyrobotically-assisted arthroplastyvalgus morphotype |
| spellingShingle | Jobe Shatrov Constant Foissey Moussa Kafelov Cécile Batailler Stanislas Gunst Elvire Servien Sébastien Lustig Functional Alignment Philosophy in Total Knee Arthroplasty—Rationale and Technique for the Valgus Morphotype Using an Image Based Robotic Platform and Individualized Planning Journal of Personalized Medicine alignment philosophy knee alignment functional alignment total knee arthroplasty robotically-assisted arthroplasty valgus morphotype |
| title | Functional Alignment Philosophy in Total Knee Arthroplasty—Rationale and Technique for the Valgus Morphotype Using an Image Based Robotic Platform and Individualized Planning |
| title_full | Functional Alignment Philosophy in Total Knee Arthroplasty—Rationale and Technique for the Valgus Morphotype Using an Image Based Robotic Platform and Individualized Planning |
| title_fullStr | Functional Alignment Philosophy in Total Knee Arthroplasty—Rationale and Technique for the Valgus Morphotype Using an Image Based Robotic Platform and Individualized Planning |
| title_full_unstemmed | Functional Alignment Philosophy in Total Knee Arthroplasty—Rationale and Technique for the Valgus Morphotype Using an Image Based Robotic Platform and Individualized Planning |
| title_short | Functional Alignment Philosophy in Total Knee Arthroplasty—Rationale and Technique for the Valgus Morphotype Using an Image Based Robotic Platform and Individualized Planning |
| title_sort | functional alignment philosophy in total knee arthroplasty rationale and technique for the valgus morphotype using an image based robotic platform and individualized planning |
| topic | alignment philosophy knee alignment functional alignment total knee arthroplasty robotically-assisted arthroplasty valgus morphotype |
| url | https://www.mdpi.com/2075-4426/13/2/212 |
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