Current Reviews in Musculoskeletal Medicine

, Volume 5, Issue 4, pp 303–308 | Cite as

Design rationale for customized TKA: a new idea or revisiting the past?

  • Evan M. Schwechter
  • Wolfgang FitzEmail author
Customization in Arthroplasty (BS Parsley, Section Editor)


Today’s most basic and important total knee replacement design concepts arose out of an earlier era in which 2 distinct approaches emerged, functional and anatomic. Functional approaches simplified knee kinetics, were easier to implant, and gained widespread popularity, in part, from their inventory control. Anatomic approaches were an attempt to recreate normal knee motion with low prosthetic contact stress. Historically, however, they became impractical to produce because of the cost of maintaining a wide variety of anatomic knee implants. New customized designs may return the anatomic design to favor due to several key features that borrow anatomic principles developed in the past, and improved with new ideas.


Total knee Anatomic Functional Customized Design 



EM Schwechter: none; W. Fitz: Member of scientific advisory board, consultancy, patents, stock/stock options, and receives royalties from Conformis, Inc.


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Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  1. 1.Department of Orthopedic SurgeryBrigham and Women’s HospitalBostonUSA

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