The language of knee alignment: updated definitions and considerations for reporting outcomes in total knee arthroplasty

Samuel J. MacDessi; Sam Oussedik; Matthew P. Abdel; Jan Victor; Mark W. Pagnano; Fares S. Haddad

doi:10.1302/0301-620X.105B2.BJJ-2022-1345

The language of knee alignment: updated definitions and considerations for reporting outcomes in total knee arthroplasty

Samuel J. MacDessi, Sam Oussedik, Matthew P. Abdel, Jan Victor, Mark W. Pagnano, Fares S. Haddad

Orthopedic Surgery

Research output: Contribution to journal › Article › peer-review

Abstract

Orthopaedic surgeons are currently faced with an overwhelming number of choices surrounding total knee arthroplasty (TKA), not only with the latest technologies and prostheses, but also fundamental decisions on alignment philosophies. From 'mechanical' to 'adjusted mechanical' to 'restricted kinematic' to 'unrestricted kinematic' - and how constitutional alignment relates to these - there is potential for ambiguity when thinking about and discussing such concepts. This annotation summarizes the various alignment strategies currently employed in TKA. It provides a clear framework and consistent language that will assist surgeons to compare confidently and contrast the concepts, while also discussing the latest opinions about alignment in TKA. Finally, it provides suggestions for applying consistent nomenclature to future research, especially as we explore the implications of 3D alignment patterns on patient outcomes.Cite this article: Bone Joint J 2023;105-B(2):102-108.

Original language	English (US)
Pages (from-to)	102-108
Number of pages	7
Journal	The bone & joint journal
Volume	105-B
Issue number	2
DOIs	https://doi.org/10.1302/0301-620X.105B2.BJJ-2022-1345
State	Published - Feb 1 2023

Keywords

Constitutional alignment
femoral component
flexion
Functional alignment
Joint line obliquity
Kinematic alignment
knees
laxities
Mechanical alignment
medial proximal tibial angle
Orthopaedic surgeons
tibial slope
Total knee arthroplasty
total knee arthroplasty (TKA)
valgus

ASJC Scopus subject areas

Surgery
Orthopedics and Sports Medicine

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10.1302/0301-620X.105B2.BJJ-2022-1345

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title = "The language of knee alignment: updated definitions and considerations for reporting outcomes in total knee arthroplasty",

abstract = "Orthopaedic surgeons are currently faced with an overwhelming number of choices surrounding total knee arthroplasty (TKA), not only with the latest technologies and prostheses, but also fundamental decisions on alignment philosophies. From 'mechanical' to 'adjusted mechanical' to 'restricted kinematic' to 'unrestricted kinematic' - and how constitutional alignment relates to these - there is potential for ambiguity when thinking about and discussing such concepts. This annotation summarizes the various alignment strategies currently employed in TKA. It provides a clear framework and consistent language that will assist surgeons to compare confidently and contrast the concepts, while also discussing the latest opinions about alignment in TKA. Finally, it provides suggestions for applying consistent nomenclature to future research, especially as we explore the implications of 3D alignment patterns on patient outcomes.Cite this article: Bone Joint J 2023;105-B(2):102-108.",

keywords = "Constitutional alignment, femoral component, flexion, Functional alignment, Joint line obliquity, Kinematic alignment, knees, laxities, Mechanical alignment, medial proximal tibial angle, Orthopaedic surgeons, tibial slope, Total knee arthroplasty, total knee arthroplasty (TKA), valgus",

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AU - Pagnano, Mark W.

AU - Haddad, Fares S.

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The language of knee alignment: updated definitions and considerations for reporting outcomes in total knee arthroplasty

Abstract

Keywords

ASJC Scopus subject areas

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